Test Report 1

FCC ID: Z9G-EDF80

Test Report

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FCCID_4097156

Uni+nTrust Page 1 of 66 Report No.: 181030005RFC—1 TEST REPORT Product Name: Truly Wireless Stereo Earbuds Trade Mark: EDIFIER Model No. / HVIN: TWS2 Add. Model No. / HVIN: N/A Report Number: 181030005RFC—1 Test Standards: FCC 47 CFR Part 15 Subpart C RSS—247 Issue 2 RSS—Gen Issue 5 FCC ID: Z9G—EDF80 IC: 10004A—EDF80 Test Result: PASS Date of Issue: November 21, 2018 Prepared for: Edifier International Limited P.O. Box 6264 General Post Office Hong Kong China Prepared by: Shenzhen UnionTrust Quality and Technology Co., Ltd. 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China TEL: +86—755—2823 0888 FAX: +86—755—2823 0886 Tested by: Reviewed by: ——_ Kevin Liang Assistant Manager Approved by: Date: November 21, 2018 Technical Diector Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86—755—28230888 Fax: +86—755—28230886 E—mail: info@uttlab.com Hittp:/www.uttlab.com

Page 2 of 67 Report No.: 181030005RFC-1 Version Version No. Date Description V1.0 November 21, 2018 Original Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 3 of 67 Report No.: 181030005RFC-1 CONTENTS 1. GENERAL INFORMATION ....................................................................................................................................... 4 1.1 CLIENT INFORMATION ........................................................................................................................................ 4 1.2 EUT INFORMATION ............................................................................................................................................ 4 1.2.1 GENERAL DESCRIPTION OF EUT ............................................................................................................ 4 1.2.2 DESCRIPTION OF ACCESSORIES.............................................................................................................. 4 1.3 PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD ................................................................................. 5 1.4 OTHER INFORMATION ......................................................................................................................................... 5 1.5 DESCRIPTION OF SUPPORT UNITS ...................................................................................................................... 5 1.6 TEST LOCATION ................................................................................................................................................. 6 1.7 TEST FACILITY ................................................................................................................................................... 6 1.8 DEVIATION FROM STANDARDS ............................................................................................................................ 6 1.9 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................................. 6 1.10 OTHER INFORMATION REQUESTED BY THE CUSTOMER ........................................................................................ 6 1.11 MEASUREMENT UNCERTAINTY ........................................................................................................................... 7 2. TEST SUMMARY ...................................................................................................................................................... 8 3. EQUIPMENT LIST .................................................................................................................................................... 9 4. TEST CONFIGURATION ........................................................................................................................................ 10 4.1 ENVIRONMENTAL CONDITIONS FOR TESTING ...................................................................................................... 10 4.1.1 NORMAL OR EXTREME TEST CONDITIONS ............................................................................................. 10 4.1.2 RECORD OF NORMAL ENVIRONMENT..................................................................................................... 10 4.2 TEST CHANNELS ............................................................................................................................................. 10 4.3 EUT TEST STATUS .......................................................................................................................................... 10 4.4 PRE-SCAN .................................................................................................................................................... 11 4.4.1 PRE-SCAN UNDER ALL PACKETS AT MIDDLE CHANNEL.............................................................................. 11 4.4.2 W ORST-CASE DATA PACKETS ................................................................................................................ 11 4.4.3 TESTED CHANNEL DETAIL...................................................................................................................... 11 4.5 TEST SETUP .................................................................................................................................................... 12 4.5.1 FOR RADIATED EMISSIONS TEST SETUP ................................................................................................ 12 4.5.2 FOR CONDUCTED RF TEST SETUP ........................................................................................................ 13 4.6 SYSTEM TEST CONFIGURATION ........................................................................................................................ 14 4.7 DUTY CYCLE ................................................................................................................................................... 15 5. RADIO TECHNICAL REQUIREMENTS SPECIFICATION .................................................................................... 17 5.1 REFERENCE DOCUMENTS FOR TESTING ............................................................................................................ 17 5.2 ANTENNA REQUIREMENT ................................................................................................................................. 17 5.3 CONDUCTED PEAK OUTPUT POWER ................................................................................................................. 18 5.4 20 DB BANDWIDTH & OCCUPIED BANDWIDTH................................................................................................... 23 5.5 CARRIER FREQUENCIES SEPARATION ............................................................................................................... 28 5.6 NUMBER OF HOPPING CHANNEL ...................................................................................................................... 31 5.7 DWELL TIME .................................................................................................................................................... 38 5.8 CONDUCTED OUT OF BAND EMISSION .............................................................................................................. 46 5.9 RADIATED SPURIOUS EMISSIONS...................................................................................................................... 55 5.10 BAND EDGE MEASUREMENTS (RADIATED) ........................................................................................................ 62 APPENDIX 1 PHOTOS OF TEST SETUP ..................................................................................................................... 67 APPENDIX 2 PHOTOS OF EUT CONSTRUCTIONAL DETAILS ................................................................................. 67 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 4 of 67 Report No.: 181030005RFC-1 1. GENERAL INFORMATION 1.1 CLIENT INFORMATION Applicant: Edifier International Limited Address of Applicant: P.O. Box 6264 General Post Office Hong Kong China Manufacturer: Beijing Edifier Technology Co., Ltd. 8th floor, ZuoAn Building,NO.68 BeiSiHuanXiLu, Haidian District, Beijing Address of Manufacturer: 100080,CHINA 1.2 EUT INFORMATION 1.2.1 General Description of EUT Product Name: Truly Wireless Stereo Earbuds Model No. / HVIN: TWS2 Add. Model No. / HVIN: N/A Trade Mark: EDIFIER DUT Stage: Identical Prototype Bluetooth 5.0 EUT Supports Function: 2.4 GHz ISM Band: (LE/ 2LE/ LE Code mode is not supported) Sample Received Date: November 15, 2018 Sample Tested Date: November 15, 2018 to November 20, 2018 1.2.2 Description of Accessories Battery (Charging case) Model No.: CEL702334 Battery Type: Lithium-ion Polymer Rechargeable Battery Rated Voltage: 3.7 Vdc Limited Charge Voltage: 4.2 Vdc Rated Capacity: 500 mAh Battery (Headphones) Model No.: CEL601115 Battery Type: Lithium-ion Polymer Rechargeable Battery Rated Voltage: 3.7 Vdc Limited Charge Voltage: 4.2 Vdc Rated Capacity: 60 mAh Charging cable Description: USB Type-C Plug Cable Cable Type: Unshielded without ferrite Length: 0.2 Meter Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 5 of 67 Report No.: 181030005RFC-1 1.3 PRODUCT SPECIFICATION SUBJECTIVE TO THIS STANDARD Frequency Band: 2400 MHz to 2483.5 MHz Frequency Range: 2402 MHz to 2480 MHz Bluetooth Version: Bluetooth BR + EDR Modulation Technique: Frequency Hopping Spread Spectrum(FHSS) Type of Modulation: GFSK, π/4DQPSK, 8DPSK Number of Channels: 79 Channel Separation: 1 MHz Hopping Channel Type: Adaptive Frequency Hopping Systems Antenna Type: Chip antenna Antenna Gain: 3.45 dBi Right Ear 9.18 dBm Maximum Peak Power: Left Ear 7.72 dBm Normal Test Voltage: 3.7 V Battery 1.4 OTHER INFORMATION Operation Frequency Each of Channel f = 2402 + k MHz, k = 0,…,78 Note: f is the operating frequency (MHz); k is the operating channel. Modulation Configure Modulation Packet Packet Type Packet Size 1-DH1 4 27 GFSK 1-DH3 11 183 1-DH5 15 339 2-DH1 20 54 π/4 DQPSK 2-DH3 26 367 2-DH5 30 679 3-DH1 24 83 8DPSK 3-DH3 27 552 3-DH5 31 1021 1.5 DESCRIPTION OF SUPPORT UNITS The EUT has been tested with associated equipment below. 1) Support Equipment Description Manufacturer Model No. Serial Number Supplied by Notebook Lenovo E450 SL10G10780 UnionTrust Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 6 of 67 Report No.: 181030005RFC-1 1.6 TEST LOCATION Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China 518109 Telephone: +86 (0) 755 2823 0888 Fax: +86 (0) 755 2823 0886 1.7 TEST FACILITY The test facility is recognized, certified, or accredited by the following organizations: CNAS-Lab Code: L9069 The measuring equipment utilized to perform the tests documented in this report has been calibrated once a year or in accordance with the manufacturer's recommendations, and is traceable under the ISO/IEC/EN 17025 to international or national standards. Equipment has been calibrated by accredited calibration laboratories. IC-Registration No.: 21600-1 The 3m Semi-anechoic chamber of Shenzhen UnionTrust Quality and Technology Co., Ltd. has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 21600-1. A2LA-Lab Certificate No.: 4312.01 Shenzhen UnionTrust Quality and Technology Co., Ltd. has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: 2005 General Requirements for the Competence of Testing and Calibration Laboratories and any additional program requirements in the identified field of testing. FCC Accredited Lab. Designation Number: CN1194 Test Firm Registration Number: 259480 1.8 DEVIATION FROM STANDARDS None. 1.9 ABNORMALITIES FROM STANDARD CONDITIONS None. 1.10 OTHER INFORMATION REQUESTED BY THE CUSTOMER None. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 7 of 67 Report No.: 181030005RFC-1 1.11 MEASUREMENT UNCERTAINTY Where relevant, the following measurement uncertainty levels have been estimated for tests performed on the Product as specified in CISPR 16-4-2. This uncertainty represents an expanded uncertainty expressed at approximately the 95% confidence level using a coverage factor of k=2. No. Item Measurement Uncertainty 1 Conducted emission 9KHz-150KHz ±3.8 dB 2 Conducted emission 150KHz-30MHz ±3.4 dB 3 Radiated emission 9KHz-30MHz ±4.9 dB 4 Radiated emission 30MHz-1GHz ±4.7 dB 5 Radiated emission 1GHz-18GHz ±5.1 dB 6 Radiated emission 18GHz-26GHz ±5.2 dB 7 Radiated emission 26GHz-40GHz ±5.2 dB 8 Radio frequency ±6.3 x 10-8 9 Occupied Channel Bandwidth ±2.3 % 10 RF output power, conducted ±0.52 dB 11 Spurious emissions ,conducted ±1.48 dB Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 8 of 67 Report No.: 181030005RFC-1 2. TEST SUMMARY FCC 47 CFR Part 15 Subpart C Test Cases Test Item Test Requirement Test Method Result FCC 47 CFR Part 15 Subpart C Section Antenna Requirement 15.203/15.247 (c) N/A PASS RSS-Gen Issue 5, Section 6.8 FCC 47 CFR Part 15 Subpart C Section AC Power Line ANSI C63.10-2013 N/A 15.207 Conducted Emission Section 6.2 (See note 1, 2) RSS-Gen Issue 5, Section 8.8 FCC 47 CFR Part 15 Subpart C Section Conducted Peak ANSI C63.10-2013 15.247 (b)(1) PASS Output Power Section 7.8.5 RSS-247 Issue 2, Section 5.4(b) FCC 47 CFR Part 15 Subpart C Section ANSI C63.10-2013 20 dB Bandwidth 15.247 (a)(1) PASS Section 6.9.2 RSS-247 Issue 2, Section 5.1(a) RSS-Gen section Occupied Bandwidth RSS-Gen section 6.7 PASS 6.7 FCC 47 CFR Part 15 Subpart C Section Carrier Frequencies ANSI C63.10-2013 15.247 (a)(1) PASS Separation Section 7.8.2 RSS-247 Issue 2, Section 5.1(b) FCC 47 CFR Part 15 Subpart C Section Number of Hopping ANSI C63.10-2013 15.247 (b)(1) PASS Channel Section 7.8.3 RSS-247 Issue 2, Section 5.1(d) FCC 47 CFR Part 15 Subpart C Section ANSI C63.10-2013 Dwell Time 15.247 (a)(1) PASS Section 7.8.4 RSS-247 Issue 2, Section 5.1(d) FCC 47 CFR Part 15 Subpart C Section ANSI C63.10-2013 Conducted Out of 15.247(d) Section 6.10.4 & PASS Band Emission RSS-247 Issue 2, Section 5.5 Section 7.8.8 FCC 47 CFR Part 15 Subpart C Section ANSI C63.10-2013 Radiated Emissions 15.205/15.209 Section 6.3 & 6.5 & PASS RSS-Gen Issue 5, Section 6.13/8.9/8.10 6.6 FCC 47 CFR Part 15 Subpart C Section Band Edge ANSI C63.10-2013 15.205/15.209 PASS Measurement Section 6.10.5 RSS-247 Issue 2, Section 5.5 Note: 1) N/A: In this whole report not application. 2) Place headphones into the charging case, they will turn off automatically, and the bluetooth does not work. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 9 of 67 Report No.: 181030005RFC-1 3. EQUIPMENT LIST Radiated Emission Test Equipment List Serial Cal. date Cal. Due date Used Equipment Manufacturer Model No. Number (mm dd, yyyy) (mm dd, yyyy) 3M Chamber & ETS-LINDGREN 3M N/A Dec. 20, 2015 Dec. 19, 2018 Accessory Equipment Receiver R&S ESIB26 100114 Dec. 10, 2017 Dec. 10, 2018 Loop Antenna ETS-LINDGREN 6502 00202525 Dec. 22, 2017 Dec. 22, 2018 Broadband Antenna ETS-LINDGREN 3142E 00201566 Dec. 17, 2017 Dec. 17, 2018 Preamplifier HP 8447F 2805A02960 Dec. 10, 2017 Dec. 10, 2018 Horn Antenna ETS-LINDGREN 3117-PA 00201874 May 22, 2018 May 22, 2019 (Pre-amplifier) Horn Antenna ETS-LINDGREN 3116C-PA 00202652 Dec. 17, 2017 Dec. 17, 2018 (Pre-amplifier) Multi device ETS-LINDGREN 7006-001 00160105 N/A N/A Controller Band Rejection Filter Micro-Tronics BRM50702 G248 June 06, 2018 June 06, 2019 (2400MHz~2500MHz) Test Software Audix e3 Software Version: 9.160323 Conducted RF test Equipment List Serial Cal. date Cal. Due date Used Equipment Manufacturer Model No. Number (mm dd, yyyy) (mm dd, yyyy) EXA Spectrum KEYSIGHT N9010A MY51440197 Dec.10, 2017 Dec. 10, 2018 Analyzer USB Wideband KEYSIGHT U2021XA MY55430035 Dec. 10, 2017 Dec. 10, 2018 Power Sensor Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 10 of 67 Report No.: 181030005RFC-1 4. TEST CONFIGURATION 4.1 ENVIRONMENTAL CONDITIONS FOR TESTING 4.1.1 Normal or Extreme Test Conditions Environment Parameter Selected Values During Tests Ambient Test Condition Temperature (°C) Voltage Relative Humidity (%) NT/NV +15 to +35 3.7V Battery 20 to 75 Remark: 1) NV: Normal Voltage; NT: Normal Temperature 4.1.2 Record of Normal Environment Temperature Relative Humidity Pressure Test Item Tested by (°C) (%) (kPa) Conducted Peak Output Power 20 dB Bandwidth & Occupied Bandwidth Carrier Frequencies Separation 25.8 54 99.98 Tony Kang Number of Hopping Channel Dwell Time Conducted Out of Band Emission Radiated Emissions 25.8 46 100.87 Andy Lin Band Edge Measurement 4.2 TEST CHANNELS Test RF Channel Lists Mode Tx/Rx Frequency Lowest(L) Middle(M) Highest(H) GFSK Channel 0 Channel 39 Channel 78 2402 MHz to 2480 MHz (DH1, DH3, DH5) 2402 MHz 2441 MHz 2480 MHz π/4DQPSK Channel 0 Channel 39 Channel 78 2402 MHz to 2480 MHz (DH1, DH3, DH5) 2402 MHz 2441 MHz 2480 MHz 8DPSK Channel 0 Channel 39 Channel 78 2402 MHz to 2480 MHz (DH1, DH3, DH5) 2402 MHz 2441 MHz 2480 MHz 4.3 EUT TEST STATUS Type of Modulation Tx Function Description 1. Keep the EUT in continuously transmitting with Modulation GFSK/π/4DQPSK/ test single 1Tx 8DPSK 2. Keep the EUT in continuously transmitting with Modulation test Hopping Frequency. Power Setting Right Ear 50 Left Ear 50 Test Software Airoha.AB152xP_LabTestTool_V2.1.4.20365_exe_2.1.4.20365 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 11 of 67 Report No.: 181030005RFC-1 4.4 PRE-SCAN 4.4.1 Pre-scan under all packets at middle channel Left Ear Conducted Average Power (dBm) for packets Type of Modulation GFSK π/4DQPSK 8DPSK Packets 1-DH1 1-DH3 1-DH5 2-DH1 2-DH3 2-DH5 3-DH1 3-DH3 3-DH5 Power (dBm) 0.76 3.73 4.38 -1.14 1.38 1.98 -1.14 1.38 1.99 Right Ear Conducted Average Power (dBm) for packets Type of Modulation GFSK π/4DQPSK 8DPSK Packets 1-DH1 1-DH3 1-DH5 2-DH1 2-DH3 2-DH5 3-DH1 3-DH3 3-DH5 Power (dBm) 1.98 4.91 5.56 0.24 2.70 3.29 0.20 2.69 3.28 4.4.2 Worst-case data packets Type of Modulation Worst-case data rates GFSK 1-DH5 π/4DQPSK 2-DH5 8DPSK 3-DH5 4.4.3 Tested channel detail Pre-Scan has been conducted to determine the worst-case mode from all possible combinations between available modulations, data packets and antenna ports (if EUT with antenna diversity architecture). Following channel(s) was (were) selected for the final test as listed below. Type of Modulation GFSK π/4DQPSK 8DPSK 1- 1- 1- 2- 2- 2- 3- 3- 3- Data Packets DH1 DH3 DH5 DH1 DH3 DH5 DH1 DH3 DH5 Available Channel 0 to 78 Test Item Test channel and choose of data packets AC Power Line Conducted Frequency Hopping Channel 0 to 78 Emission Link Conducted Peak Output Channel 0 & 39 & 78 Power Channel 0 & 39 & 78 20 dB Bandwidth Carrier Frequencies Frequency Hopping Channel 0 to 78 Separation Frequency Hopping Channel 0 to 78 Number of Hopping Channel Channel 39 Dwell Time Conducted Out of Band Channel 0 & 39 & 78 Emission Channel 0 & 39 & 78 Radiated Emissions Band Edge Measurements Channel 0 & 78 (Radiated) Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 12 of 67 Report No.: 181030005RFC-1 Remark: 1. The mark “ ” means is chosen for testing; 2. The mark “ ” means is not chosen for testing. 4.5 TEST SETUP 4.5.1 For Radiated Emissions test setup Figure 1. Below 30MHz Figure 2. 30MHz to 1GHz Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 13 of 67 Report No.: 181030005RFC-1 Figure 3. Above 1GHz 4.5.2 For Conducted RF test setup Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 14 of 67 Report No.: 181030005RFC-1 4.6 SYSTEM TEST CONFIGURATION For emissions testing, the equipment under test (EUT) setup to transmit continuously to simplify the measurement methodology. Care was taken to ensure proper power supply voltages during testing. During testing, radiated emission were performed with the EUT set to transmit at the channel with highest output power as worst-case scenario. It was powered by a 3.7 V Battery. Only the worst case data were recorded in this test report. The signal is maximized through rotation and placement in the three orthogonal axes. The antenna height and polarization are varied during the search for maximum signal level. The antenna height is varied from 1 to 4 meters. Radiated emissions are taken at three meters unless the signal level is too low for measurement at that distance. If necessary, a pre-amplifier is used and/or the test is conducted at a closer distance. Therefore, all final radiated testing was performed with the EUT in (see table below) orientation. Worst-case axis Frequency Mode Antenna Port positioning Above 1GHz 1TX Chain 0 X axis All readings are extrapolated back to the equivalent three meter reading using inverse scaling with distance. Analyzer resolution is 100 kHz or greater for frequencies below 1000 MHz. The resolution is 1 MHz or greater for frequencies above 1000 MHz. The spurious emissions more than 20 dB below the permissible value are not reported. Radiated emission measurement were performed from the lowest radio frequency signal generated in the device which is greater than 9 kHz to the tenth harmonic of the highest fundamental frequency or to 40 GHz, whichever is lower. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 15 of 67 Report No.: 181030005RFC-1 4.7 DUTY CYCLE Test Procedure: ANSI C63.10-2013 Clause 11.6. Test Results Left Ear 1/ T Type of On Time Period Duty Cycle Duty Cycle Duty Cycle Average Packets Minimum Modulation (msec) (msec) (linear) (%) Factor (dB) Factor (dB) VBW (kHz) GFSK 1-DH5 0.828 2.923 0.28 28.33 5.48 1.21 -10.96 Right Ear 1/ T Type of On Time Period Duty Cycle Duty Cycle Duty Cycle Average Packets Minimum Modulation (msec) (msec) (linear) (%) Factor (dB) Factor (dB) VBW (kHz) GFSK 1-DH5 0.828 2.922 0.28 28.34 5.48 1.21 -10.95 Remark: 1) Duty cycle= On Time/ Period; 2) Duty Cycle factor = 10 * log(1/ Duty cycle); 3) Average factor = 20 log10 Duty Cycle. The test plot as follows GFSK_ 1-DH5_Left Ear Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 16 of 67 Report No.: 181030005RFC-1 GFSK_ 1-DH5_Right Ear Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 17 of 67 Report No.: 181030005RFC-1 5. RADIO TECHNICAL REQUIREMENTS SPECIFICATION 5.1 REFERENCE DOCUMENTS FOR TESTING No. Identity Document Title Frequency allocations and radio treaty matters; general rules and 1 FCC 47 CFR Part 2 regulations 2 FCC 47 CFR Part 15 Radio Frequency Devices Digital Transmission Systems (DTSs), Frequency Hopping 3 RSS-247 Issue 2 Systems (FHSs) and Licence-Exempt Local Area Network (LE- LAN) Devices 4 RSS-Gen Issue 5 General Requirements for Compliance of Radio Apparatus American National Standard for Testing Unlicesed Wireless 5 ANSI C63.10-2013 Devices 5.2 ANTENNA REQUIREMENT Standard Requirement 15.203 requirement: An intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. The use of a permanently attached antenna or of an antenna that uses a unique coupling to the intentional radiator, the manufacturer may design the unit so that a broken antenna can be replaced by the user, but the use of a standard antenna jack or electrical connector is prohibited. 15.247(b) (4) requirement: The conducted output power limit specified in paragraph (b) of this section is based on the use of antennas with directional gains that do not exceed 6 dBi. Except as shown in paragraph (c) of this section, if transmitting antennas of directional gain greater than 6 dBi are used, the conducted output power from the intentional radiator shall be reduced below the stated values in paragraphs (b)(1), (b)(2), and (b)(3) of this section, as appropriate, by the amount in dB that the directional gain of the antenna exceeds 6 dBi. RSS-Gen Issue 5, Section 6.8 requirement: According to RSS-Gen Issue 5, section 6.8, a transmitter can only be sold or operated with antennas with which it was certified. A transmitter may be certified with multiple antenna types. An antenna type comprises antennas having similar in-band and out-of-band radiation patterns. EUT Antenna: Antenna in the interior of the equipment and no consideration of replacement. The gain of the antenna is 3.45 dBi. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 18 of 67 Report No.: 181030005RFC-1 5.3 CONDUCTED PEAK OUTPUT POWER FCC 47 CFR Part 15 Subpart C Section15.247 (b)(1) Test Requirement: RSS-247 Issue 2, Section 5.4(b) Test Method: ANSI C63.10-2013 Section 7.8.5 Limit: For FHSs operating in the band 2400-2483.5 MHz, the maximum peak conducted output power shall not exceed 1.0 W if the hopset uses 75 or more hopping channels; the maximum peak conducted output power shall not exceed 0.125 W if the hopset uses less than 75 hopping channels. The e.i.r.p. shall not exceed 4 W, except as provided in section 5.4(e). FHSs shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, FHSs operating in the band 2400-2483.5 MHz may have hopping channel carrier frequencies that are separated by 25 kHz or two thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided that the systems operate with an output power no greater than 0.125 W. Test Procedure: Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum analyzer. a) Use the following spectrum analyzer settings: 1) Span: Approximately 5 x 20 dB bandwidth, centered on a hopping channel. 2) RBW > 20 dB bandwidth of the emission being measured. 3) VBW ≥ RBW. 4) Sweep: Auto. 5) Detector function: Peak. 6) Trace: Max hold. b) Allow trace to stabilize. c) Use the marker-to-peak function to set the marker to the peak of the emission. d) The indicated level is the peak output power, after any corrections for external attenuators and cables. e) A plot of the test results and setup description shall be included in the test report. Test Setup: Refer to section 4.5.3 for details. Instruments Used: Refer to section 3 for details Test Results: Pass Left Ear Type of Peak Output Power (dBm) Peak Output Power (mW) Modulation Channel 0 Channel 39 Channel 78 Channel 0 Channel 39 Channel 78 GFSK 6.09 6.34 7.72 4.06 4.31 5.91 π/4 DQPSK 5.79 6.01 7.35 3.79 3.99 5.43 8DPSK 5.99 6.16 7.52 3.97 4.13 5.64 Right Ear Type of Peak Output Power (dBm) Peak Output Power (mW) Modulation Channel 0 Channel 39 Channel 78 Channel 0 Channel 39 Channel 78 GFSK 7.29 7.71 9.18 5.35 5.90 8.27 π/4 DQPSK 7.10 7.53 8.99 5.13 5.66 7.92 8DPSK 7.31 7.74 9.15 5.38 5.94 8.23 Note: The antenna gain of 3.45 dBi less than 6dBi maximum permission antenna gain value based on 125 mW peak output power limit. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 19 of 67 Report No.: 181030005RFC-1 The test plots as follows: Left Ear GFSK π/4 DQPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 20 of 67 Report No.: 181030005RFC-1 8DPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 21 of 67 Report No.: 181030005RFC-1 Right Ear GFSK π/4 DQPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 22 of 67 Report No.: 181030005RFC-1 8DPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 23 of 67 Report No.: 181030005RFC-1 5.4 20 DB BANDWIDTH & OCCUPIED BANDWIDTH FCC 47 CFR Part 15 Subpart C Section 15.247 (a)(1) Test Requirement: RSS-247 Issue 2, Section 5.1(a) RSS-Gen section 6.7 ANSI C63.10-2013 Section 6.9.2 Test Method: RSS-Gen section 6.7 Limit: None; for reporting purposes only. Test Procedure: Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum analyzer. Use the following spectrum analyzer settings: a) Span = approximately 2 to 5 times the OBW, centered on a hopping channel. b) RBW = 1% to 5% of the OBW. c) VBW ≥ 3 x RBW d) Sweep = auto; e) Detector function = peak f) Trace = max hold g) All the trace to stabilize, use the marker-to-peak function to set the marker to the peak of the emission, use the marker-delta function to measure and record the 20dB down bandwidth of the emission. Note: The cable loss and attenuator loss were offset into measure device as an amplitude offset. Test Setup: Refer to section 4.5.3 for details. Instruments Used: Refer to section 3 for details Test Results: Pass Left Ear Type of 20 dB Bandwidth (MHz) Occupied Bandwidth (MHz) Modulation Channel 0 Channel 39 Channel 78 Channel 0 Channel 39 Channel 78 GFSK 0.923 0.923 0.927 0.8757 0.8801 0.8783 π/4 DQPSK 1.239 1.253 1.246 1.1709 1.1728 1.1725 8DPSK 1.264 1.265 1.267 1.1644 1.1657 1.1677 Right Ear Type of 20 dB Bandwidth (MHz) Occupied Bandwidth (MHz) Modulation Channel 0 Channel 39 Channel 78 Channel 0 Channel 39 Channel 78 GFSK 0.928 0.926 0.930 0.8763 0.8765 0.8797 π/4 DQPSK 1.247 1.240 1.244 1.1683 1.1696 1.1736 8DPSK 1.262 1.263 1.265 1.1639 1.1649 1.1668 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 24 of 67 Report No.: 181030005RFC-1 The test plots as follows: Left Ear GFSK π/4 DQPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 25 of 67 Report No.: 181030005RFC-1 8DPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 26 of 67 Report No.: 181030005RFC-1 Right Ear GFSK π/4 DQPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 27 of 67 Report No.: 181030005RFC-1 8DPSK Lowest Channel Middle Channel Highest Channel Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 28 of 67 Report No.: 181030005RFC-1 5.5 CARRIER FREQUENCIES SEPARATION FCC 47 CFR Part 15 Subpart C Section 15.247 (a)(1) Test Requirement: RSS-247 Issue 2, Section 5.1(b) Test Method: ANSI C63.10-2013 Section 7.8.2 Limit: Frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 125 mW. Test Procedure: Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum analyzer. Use the following spectrum analyzer settings: a) Span: Wide enough to capture the peaks of two adjacent channels. b) RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel. c) Video (or average) bandwidth (VBW) ≥ RBW. d) Sweep: Auto. e) Detector function: Peak. f) Trace: Max hold. g) Allow the trace to stabilize. h) Use the marker-delta function to determine the separation between the peaks of the adjacent channels. Note: The cable loss and attenuator loss were offset into measure device as an amplitude offset. Test Setup: Refer to section 4.5.3 for details. Instruments Used: Refer to section 3 for details Test Results: Pass Left Ear Adjacent Channel Separation (MHz) Minimum Limit (MHz) Type of Modulation Channel 39 Channel 39 GFSK 1.000 0.615 π/4 DQPSK 1.000 0.826 8DPSK 1.000 0.843 Note: The minimum limit is two-third 20 dB bandwidth. Right Ear Adjacent Channel Separation (MHz) Minimum Limit (MHz) Type of Modulation Channel 39 Channel 39 GFSK 1.000 0.617 π/4 DQPSK 1.000 0.827 8DPSK 1.000 0.841 Note: The minimum limit is two-third 20 dB bandwidth. Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 29 of 67 Report No.: 181030005RFC-1 The test plots as follows: Left Ear GFSK π/4 DQPSK 8DPSK Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 30 of 67 Report No.: 181030005RFC-1 Right Ear GFSK π/4 DQPSK 8DPSK Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 31 of 67 Report No.: 181030005RFC-1 5.6 NUMBER OF HOPPING CHANNEL FCC 47 CFR Part 15 Subpart C Section 15.247(b)(1) Test Requirement: RSS-247 Issue 2, Section 5.1(d) Test Method: ANSI C63.10-2013 Section 7.8.3 Limit: Frequency hopping systems in the 2400 – 2483.5 MHz band shall use at least 15 non- overlapping channels. Test Procedure: Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to the spectrum analyzer. Use the following spectrum analyzer settings: a) Span: The frequency band of operation. Depending on the number of channels the device supports, it may be necessary to divide the frequency range of operation across multiple spans, to allow the individual channels to be clearly seen. b) RBW < 30% of the channel spacing or the 20 dB bandwidth, whichever is smaller. c) VBW ≥ RBW. d) Sweep: Auto. e) Detector function: Peak. f) Trace: Max hold. g) Allow the trace to stabilize. Note: The cable loss and attenuator loss were offset into measure device as an amplitude offset. Test Setup: Refer to section 4.5.3 for details. Instruments Used: Refer to section 3 for details Test Results: Pass Left Ear Type of Modulation Number of Hopping Channel GFSK 79 π/4 DQPSK 79 8DPSK 79 Right Ear Type of Modulation Number of Hopping Channel GFSK 79 π/4 DQPSK 79 8DPSK 79 Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com

Page 32 of 67 Report No.: 181030005RFC-1 The test plots as follows: Left Ear GFSK_Low End Spectrum Channel Hopping Plot GFSK_High End Spectrum Channel Hopping Plot Shenzhen UnionTrust Quality and Technology Co., Ltd. Address: 16/F, Block A, Building 6, Baoneng Science and Technology Park, Qingxiang Road No.1, Longhua New District, Shenzhen, China Tel: +86-755-28230888 Fax: +86-755-28230886 E-mail: info@uttlab.com Http://www.uttlab.com


Document Created: 2018-11-29 09:47:10
Document Modified: 2018-11-29 09:47:10
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