Test Report DTS

FCC ID: 2AE3CWS102

Test Report

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FCCID_2815778

Shenzhen SEM.Test Technology Co., Ltd. FCC Part 15C Measurement and Test Report For KINLAN INDUSTRIAL LIMITED 3F, Building A4, Yinlong Industrial Park, ShenShan Road, Longgang District, ShenZhen, Guangdong, China FCC ID: 2AE3CWS102 FCC Rule(s): FCC Part 15.247 Product Description: Light bulb BT speaker Tested Model: WS102 Report No.: STR15118036I-2 Tested Date: 2015-11-04 to 2015-11-11 Issued Date: 2015-11-11 Tested By: Jong Wang / Engineer Reviewed By: Silin Chen / EMC Manager Approved & Authorized By: Jandy So / PSQ Manager Prepared By: Shenzhen SEM.Test Technology Co., Ltd. 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen SEM.Test Technology Co., Ltd. REPORT NO.: STR15118036I-2 PAGE 1 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................3 1.2 TEST STANDARDS...................................................................................................................................................4 1.3 TEST METHODOLOGY .............................................................................................................................................4 1.4 TEST FACILITY .......................................................................................................................................................4 1.5 EUT SETUP AND TEST MODE .................................................................................................................................5 1.6 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................5 2. SUMMARY OF TEST RESULTS ...........................................................................................................................6 3. RF EXPOSURE .........................................................................................................................................................7 3.1 STANDARD APPLICABLE.........................................................................................................................................7 3.2 TEST RESULT..........................................................................................................................................................7 4. ANTENNA REQUIREMENT ..................................................................................................................................8 4.1 STANDARD APPLICABLE.........................................................................................................................................8 4.2 EVALUATION INFORMATION ..................................................................................................................................8 5. POWER SPECTRAL DENSITY .............................................................................................................................9 5.1 STANDARD APPLICABLE.........................................................................................................................................9 5.2 TEST PROCEDURE ...................................................................................................................................................9 5.3 ENVIRONMENTAL CONDITIONS ..............................................................................................................................9 5.4 SUMMARY OF TEST RESULTS/PLOTS ......................................................................................................................9 6. 6DB BANDWIDTH .................................................................................................................................................12 6.1 STANDARD APPLICABLE.......................................................................................................................................12 6.2 TEST PROCEDURE .................................................................................................................................................12 6.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................12 6.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................12 7. RF OUTPUT POWER ............................................................................................................................................15 7.1 STANDARD APPLICABLE.......................................................................................................................................15 7.2 TEST PROCEDURE .................................................................................................................................................15 7.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................15 7.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................15 8. FIELD STRENGTH OF SPURIOUS EMISSIONS .............................................................................................16 8.1 MEASUREMENT UNCERTAINTY ............................................................................................................................16 8.2 STANDARD APPLICABLE.......................................................................................................................................16 8.3 TEST PROCEDURE .................................................................................................................................................16 8.4 CORRECTED AMPLITUDE & MARGIN CALCULATION ............................................................................................18 8.5 ENVIRONMENTAL CONDITIONS ............................................................................................................................18 8.7 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................18 9. OUT OF BAND EMISSIONS .................................................................................................................................26 9.1 STANDARD APPLICABLE.......................................................................................................................................26 9.2 TEST PROCEDURE .................................................................................................................................................26 9.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................27 9.4 SUMMARY OF TEST RESULTS/PLOTS ....................................................................................................................27 10. CONDUCTED EMISSIONS ................................................................................................................................29 10.1 MEASUREMENT UNCERTAINTY ..........................................................................................................................29 10.2 TEST PROCEDURE ...............................................................................................................................................29 10.3 BASIC TEST SETUP BLOCK DIAGRAM .................................................................................................................29 10.4 ENVIRONMENTAL CONDITIONS ..........................................................................................................................30 10.5 TEST RECEIVER SETUP .......................................................................................................................................30 10.6 SUMMARY OF TEST RESULTS/PLOTS ..................................................................................................................30 10.7 CONDUCTED EMISSIONS TEST DATA ..................................................................................................................30 REPORT NO.: STR15118036I-2 PAGE 2 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 1. GENERAL INFORMATION 1.1 Product Description for Equipment Under Test (EUT) Client Information Applicant: KINLAN INDUSTRIAL LIMITED Address of applicant: 3F, Building A4, Yinlong Industrial Park, ShenShan Road, Longgang District, ShenZhen, Guangdong, China Manufacturer: KINLAN INDUSTRIAL LIMITED Address of manufacturer: 3F, Building A4, Yinlong Industrial Park, ShenShan Road, Longgang District, ShenZhen, Guangdong, China General Description of EUT Product Name: Light bulb BT speaker Brand Name: / Model No.: WS102 Hardware version: X51 V2.2 Software version: / Rated Voltage: AC 120V60Hz Device Category: Fixed Device Note: The test data is gathered from a production sample provided by the manufacturer. Technical Characteristics of EUT Bluetooth Version: V4.0(BLE) Frequency Range: 2402-2480MHz RF Output Power: 3.622dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Antenna Type: Integral Antenna Antenna Gain: 0dBi Lowest Internal frequency of EUT: 32.768kHz REPORT NO.: STR15118036I-2 PAGE 3 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 1.2 Test Standards The following report is prepared on behalf of the KINLAN INDUSTRIAL LIMITED in accordance with FCC Part 15, Subpart C, and section 15.203, 15.205, 15.207, 15.209 and 15.247 of the Federal Communication Commissions rules. The objective is to determine compliance with FCC Part 15, Subpart C, and section 15.203, 15.205, 15.207, 15.209 and 15.247 of the Federal Communication Commissions rules. Maintenance of compliance is the responsibility of the manufacturer. Any modification of the product, which result in lowering the emission, should be checked to ensure compliance has been maintained. 1.3 Test Methodology All measurements contained in this report were conducted with ANSI C63.10-2013, American National Standard for Testing Unlicensed Wireless Devices, and ANSI C63.4-2014, American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the range of 9 kHz to 40 GHz. The measurement guide KDB 558074 D01 V03r03 for digital transmission systems shall be performed also. 1.4 Test Facility FCC – Registration No.: 934118 Shenzhen SEM.Test Technology Co., Ltd. EMC Laboratory has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files and the Registration is 934118. Industry Canada (IC) Registration No.: 11464A The 3m Semi-anechoic chamber of Shenzhen SEM.Test Technology Co., Ltd. has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 11464A. CNAS Registration No.: L4062 Shenzhen SEM.Test Technology Co., Ltd. is a testing organization accredited by China National Accreditation Service for Conformity Assessment (CNAS) according to ISO/IEC 17025. The accreditation certificate number is L4062. All measurement facilities used to collect the measurement data are located at 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao’an District, Shenzhen, P.R.C (518101). REPORT NO.: STR15118036I-2 PAGE 4 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 1.5 EUT Setup and Test Mode The EUT was operated in the engineering mode to fix the Tx frequency that was for the purpose of the measurements. All testing shall be performed under maximum output power condition, and to measure its highest possible emissions level, more detailed description as follows: Test Mode List Test Mode Description Remark TM1 GFSK(BLE) 2402MHz, 2442MHz, 2480MHz EUT Cable List and Details Cable Description Length (m) Shielded/Unshielded With / Without Ferrite / / / / Special Cable List and Details Cable Description Length (m) Shielded/Unshielded With / Without Ferrite / / / / Auxiliary Equipment List and Details Description Manufacturer Model Serial Number / / / / 1.6 Test Equipment List and Details Description Manufacturer Model Serial Number Cal Date Due Date Spectrum Analyzer Agilent E4407B MY41440400 2015-06-17 2016-06-16 Spectrum Analyzer Rohde & Schwarz FSP 836079/035 2015-06-17 2016-06-16 EMI Test Receiver Rohde & Schwarz ESVB 825471/005 2015-06-17 2016-06-16 Amplifier Agilent 8447F 3113A06717 2015-06-17 2016-06-16 Amplifier C&D PAP-1G18 2002 2015-06-17 2016-06-16 Broadband Antenna Schwarz beck VULB9163 9163-333 2015-06-17 2016-06-16 Horn Antenna ETS 3117 00086197 2015-06-17 2016-06-16 Horn Antenna ETS 3116B 00088203 2015-06-17 2016-06-16 Loop Antenna Schwarz beck FMZB 1516 9773 2015-06-17 2016-06-16 EMI Test Receiver Rohde & Schwarz ESPI 101611 2015-06-17 2016-06-16 L.I.S.N Schwarz beck NSLK8126 8126-224 2015-06-17 2016-06-16 Pulse Limiter Rohde & Schwarz ESH3-Z2 100911 2015-06-17 2016-06-16 REPORT NO.: STR15118036I-2 PAGE 5 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 2. SUMMARY OF TEST RESULTS FCC Rules Description of Test Item Result § 2.1093 RF Exposure Compliant §15.203;§15.247(b)(4)(i) Antenna Requirement Compliant §15.207(a) Conducted Emission Compliant §15.247(e) Power Spectral Density Compliant §15.247(a)(2) 6 dB Bandwidth Compliant §15.247(b)(3) RF Output Power Compliant §15.209(a) Radiated Emission Compliant §15.247(d) Band Edge (Out of Band Emissions) Compliant N/A: not applicable REPORT NO.: STR15118036I-2 PAGE 6 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 3. RF Exposure 3.1 Standard Applicable According to§1.1307 and §2.1093, the portable transmitter must comply the RF exposure requirements. 3.2 Test Result This product complied with the requirement of the RF exposure, please see the SAR Report. REPORT NO.: STR15118036I-2 PAGE 7 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 4. Antenna Requirement 4.1 Standard Applicable According to FCC Part 15.203, 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 shall be considered sufficient to comply with the provisions of this section. 4.2 Evaluation Information This product has a PCB antenna, fulfill the requirement of this section. REPORT NO.: STR15118036I-2 PAGE 8 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 5. Power Spectral Density 5.1 Standard Applicable According to 15.247(a)(1)(iii), For digitally modulated systems, the power spectral density conducted from the intentional radiator to the antenna shall not be greater than 8 dBm in any 3 kHz band during any time interval of continuous transmission. 5.2 Test Procedure According to the KDB 558074 D01 V03r03, the test method of power spectral density as below: a) Set analyzer center frequency to DTS channel center frequency. b) Set the span to 1.5 times the DTS bandwidth. c) Set the RBW to: 3 kHz ≤ RBW ≤ 100 kHz. d) Set the VBW ≥ 3 × RBW. e) Detector = peak. f) Sweep time = auto couple. g) Trace mode = max hold. h) Allow trace to fully stabilize. i) Use the peak marker function to determine the maximum amplitude level within the RBW. j) If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat. 5.3 Environmental Conditions Temperature: 26 C Relative Humidity: 54 ATM Pressure: 1011 mbar 5.4 Summary of Test Results/Plots Test Channel Power Spectral Density Limit Test Mode MHz dBm/100kHz dBm/3kHz 2402 3.49 8 GFSK(BLE) 2442 3.132 8 2480 2.933 8 Please refer to the following test plots: REPORT NO.: STR15118036I-2 PAGE 9 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Low Channel Middle Channel REPORT NO.: STR15118036I-2 PAGE 10 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. High Channel REPORT NO.: STR15118036I-2 PAGE 11 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 6. 6dB Bandwidth 6.1 Standard Applicable According to 15.247(a)(2). Systems using digital modulation techniques may operate in the 902–928 MHz, 2400–2483.5 MHz, and 5725–5850 MHz bands. The minimum 6 dB bandwidth shall be at least 500 kHz. 6.2 Test Procedure a) Set RBW = 100 kHz. b) Set the video bandwidth (VBW) ≥ 3 × RBW. c) Detector = Peak. d) Trace mode = max hold. e) Sweep = auto couple. f) Allow the trace to stabilize. g) Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. 6.3 Environmental Conditions Temperature: 25 C Relative Humidity: 53 ATM Pressure: 1018 mbar 6.4 Summary of Test Results/Plots Test Channel 6 dB Bandwidth 99% Bandwidth Limit Test Mode MHz kHz MHz kHz 2402 739.570 1058.9 ≥500 GFSK(BLE) 2442 738.475 1060.4 ≥500 2480 745.255 1062.3 ≥500 Please refer to the following test plots: REPORT NO.: STR15118036I-2 PAGE 12 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. For BLE Low Channel: Middle Channel: REPORT NO.: STR15118036I-2 PAGE 13 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. High Channel: REPORT NO.: STR15118036I-2 PAGE 14 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 7. RF Output Power 7.1 Standard Applicable According to 15.247(b)(3). For systems using digital modulation in the 902–928 MHz, 2400–2483.5 MHz, and 5725–5850 MHz bands: 1 Watt. 7.2 Test Procedure According to section 15.247(b)-power output of the KDB-558074 D01 V03r02 section 9.1.1, this procedure shall be used when the measurement instrument has available a resolution bandwidth that is greater than the DTS bandwidth. a) Set the RBW ≥ DTS bandwidth. b) Set VBW ≥ 3 × RBW. c) Set span ≥ 3 x RBW d) Sweep time = auto couple. e) Detector = peak. f) Trace mode = max hold. g) Allow trace to fully stabilize. h) Use peak marker function to determine the peak amplitude level. 7.3 Environmental Conditions Temperature: 26 C Relative Humidity: 57 ATM Pressure: 1011 mbar 7.4 Summary of Test Results/Plots Frequency Reading Output Power Limit Test Mode MHz dBm mW mW 2402 3.622 2.303 1000 GFSK(BLE) 2442 3.210 2.094 1000 2480 3.012 2.001 1000 Note: the antenna gain of 0dBi less than 6dBi maximum permission antenna gain value based on 1 watt peak output power limit. REPORT NO.: STR15118036I-2 PAGE 15 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 8. Field Strength of Spurious Emissions 8.1 Measurement Uncertainty Based on NIS 81, The Treatment of Uncertainty in EMC Measurements, the best estimate of the uncertainty of a radiation emissions measurement is +5.10 dB. 8.2 Standard Applicable According to §15.247(d), in any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a). The emission limit in this paragraph is based on measurement instrumentation employing an average detector. The provisions in §15.35 for limiting peak emissions apply. Spurious Radiated Emissions measurements starting below or at the lowest crystal frequency. 8.3 Test Procedure The setup of EUT is according with per ANSI C63.4-2014 measurement procedure. The specification used was with the FCC Part 15.205 15.247(a) and FCC Part 15.209 Limit. The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle. The spacing between the peripherals was 10 cm. REPORT NO.: STR15118036I-2 PAGE 16 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Antenna Tower 1m-4m 3m EUT SYS 1.5m Turntable Table To EMI Receiver Ground Plane Frequency :9kHz-30MHz Frequency :30MHz-1GHz Frequency :Above 1GHz RBW=10KHz, RBW=120KHz, RBW=1MHz, VBW =30KHz VBW=300KHz VBW=3MHz(Peak), 10Hz(AV) Sweep time= Auto Sweep time= Auto Sweep time= Auto Trace = max hold Trace = max hold Trace = max hold Detector function = peak Detector function = peak, QP Detector function = peak, AV REPORT NO.: STR15118036I-2 PAGE 17 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 8.4 Corrected Amplitude & Margin Calculation The Corrected Amplitude is calculated by adding the Antenna Factor and the Cable Factor, and subtracting the Amplifier Gain from the Amplitude reading. The basic equation is as follows: Corr. Ampl. = Indicated Reading + Ant. Factor + Cable Loss – Ampl. Gain The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of -6dBV means the emission is 6dBV below the maximum limit for Class B. The equation for margin calculation is as follows: Margin = Corr. Ampl. – FCC Part 15 Limit 8.5 Environmental Conditions Temperature: 25 C Relative Humidity: 52 ATM Pressure: 1012 mbar 8.7 Summary of Test Results/Plots According to the data below, the FCC Part 15.205, 15.209 and 15.247 standards, and had the worst cases: Note: this EUT was tested in 3 orthogonal positions, the antenna vertically is worst case position and the data was reported. REPORT NO.: STR15118036I-2 PAGE 18 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Plot of Radiated Emissions Test Data EUT: Light bulb BT speaker Tested Model: WS102 Operating Condition: Transmitting Low Channel (2402MHz) Comment: AC120V60Hz Test Specification: Horizontal No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) ( ) (cm) 1 117.7725 29.06 5.03 34.09 43.50 -9.41 66 100 QP 2 209.3129 26.89 5.74 32.63 43.50 -10.87 87 100 QP 3 224.5193 25.09 8.39 33.48 46.00 -12.52 145 100 QP 4 682.3484 16.24 19.08 35.32 46.00 -10.68 167 100 QP REPORT NO.: STR15118036I-2 PAGE 19 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Test Specification: Vertical No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) Factor(dB) (dBuV/m) (dBuV/m) (dB) ( ·) (cm) 1 67.4382 25.61 3.75 29.36 40.00 -10.64 42 100 QP 2 120.6991 35.33 4.96 40.29 43.50 -3.21 103 100 QP 3 142.3243 34.51 3.31 37.82 43.50 -5.68 177 100 QP 4 264.7457 22.89 10.35 33.24 46.00 -12.76 210 100 QP REPORT NO.: STR15118036I-2 PAGE 20 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Plot of Radiated Emissions Test Data EUT: Light bulb BT speaker Tested Model: WS102 Operating Condition: Transmitting-Middle channel (2442MHz) Comment: AC120V60Hz Test Specification: Horizontal No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) (·) (cm) 1 117.7725 29.07 5.03 34.10 43.50 -9.40 58 100 QP 2 127.2176 29.68 4.44 34.12 43.50 -9.38 83 200 QP 3 242.5253 24.98 9.43 34.41 46.00 -11.59 137 100 QP 4 684.7454 17.15 18.91 36.06 46.00 -9.94 160 100 QP REPORT NO.: STR15118036I-2 PAGE 21 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Test Specification: Vertical No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) (·) (cm) 1 67.2022 25.94 3.81 29.75 40.00 -10.25 43 100 QP 2 118.6014 35.49 5.03 40.52 43.50 -2.98 99 100 QP 3 128.1130 35.33 4.37 39.70 43.50 -3.80 168 100 QP 4 614.2142 17.66 18.32 35.98 46.00 -10.02 205 100 QP REPORT NO.: STR15118036I-2 PAGE 22 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Plot of Radiated Emissions Test Data EUT: Light bulb BT speaker Tested Model: WS102 Operating Condition: Transmitting-High channel (2480MHz) Comment: AC120V60Hz Test Specification: Horizontal No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) (·) (cm) 1 120.6991 30.37 4.96 35.33 43.50 -8.17 59 100 QP 2 205.6751 27.30 4.93 32.23 43.50 -11.27 93 100 QP 3 226.0994 25.75 8.48 34.23 46.00 -11.77 143 100 QP 4 734.4913 16.15 19.22 35.37 46.00 -10.63 164 100 QP REPORT NO.: STR15118036I-2 PAGE 23 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Test Specification: Vertical No. Frequency Reading Correct Result Limit Margin Degree Height Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) (·) (cm) 1 67.6751 26.65 3.70 30.35 40.00 -9.65 41 100 QP 2 129.0146 36.08 4.29 40.37 43.50 -3.13 98 100 QP 3 264.7457 22.92 10.35 33.27 46.00 -12.73 175 100 QP 4 675.2080 16.22 18.99 35.21 46.00 -10.79 211 100 QP REPORT NO.: STR15118036I-2 PAGE 24 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Spurious Emissions Above 1GHz Transmitting: BLE mode: Frequency Reading Correct Result Limit Margin Polar Detector (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) H/V Low Channel-2402MHz 4804 45.74 0.55 46.29 74.00 -27.71 H PK 4804 33.20 0.55 33.75 54.00 -20.25 H AV 7206 36.05 3.66 39.71 74.00 -34.29 H PK 7206 24.28 3.66 27.94 54.00 -26.06 H AV 4804 48.39 0.55 48.94 74.00 -25.06 V PK 4804 32.73 0.55 33.28 54.00 -20.72 V AV 7206 35.71 3.66 39.37 74.00 -34.63 V PK 7206 24.97 3.66 28.63 54.00 -25.37 V AV Middle Channel-2442MHz 4884 42.94 0.66 43.60 74.00 -30.40 H PK 4884 31.84 0.66 32.50 54.00 -21.50 H AV 7326 39.02 3.76 42.78 74.00 -31.22 H PK 7326 27.91 3.76 31.67 54.00 -22.33 H AV 4884 47.23 0.66 47.89 74.00 -26.11 V PK 4884 33.38 0.66 34.04 54.00 -19.96 V AV 7326 39.12 3.76 42.88 74.00 -31.12 V PK 7326 27.67 3.77 31.44 54.00 -22.56 V AV High Channel-2480MHz 4960 45.73 0.77 46.50 74.00 -27.50 H PK 4960 32.76 0.77 33.53 54.00 -20.47 H AV 7440 39.53 3.85 43.38 74.00 -30.62 H PK 7440 27.81 3.85 31.66 54.00 -22.34 H AV 4960 43.02 0.77 43.79 74.00 -30.21 V PK 4960 31.73 0.77 32.50 54.00 -21.50 V AV 7440 39.13 3.85 42.98 74.00 -31.02 V PK 7440 27.81 3.85 31.66 54.00 -22.34 V AV Note: Testing is carried out with frequency rang 9kHz to the tenth harmonics, which above 3th Harmonics are attenuated more than 20dB below the permissible limits or the field strength is too small to be measured. The measurements greater than 20dB below the limit from 9kHz to 30MHz. REPORT NO.: STR15118036I-2 PAGE 25 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 9. Out of Band Emissions 9.1 Standard Applicable According to §15.247 (d) In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a). 9.2 Test Procedure According to the KDB 558074 D01 V03r03, the band-edge radiated test method as follows: Set span = wide enough to capture the peak level of the emission operating on the channel closest to the bandedge, as well as any modulation products which fall outside of the authorized band of operation (2310MHz to 2420MHz for low bandedge, 2460MHz to 2500MHz for the high bandedge) RBW = 1MHz, VBW = 1MHz for peak value measured RBW = 1MHz, VBW = 10Hz for average value measured Sweep = auto; Detector function = peak/average; Trace = max hold All the trace to stabilize, set the marker on the emission at the bandedge, or on the highest modulation product outside of the band, if this level is greater than that at the bandedge. Enable the marker-delta function, then use the marker-to-peak function to move the marker to the peak of the in-band emission. Those emission must comply with the 15.209 limit for fall in the restricted bands listed in section 15.205. Note that the method of measurement KDB publication number: 913591 may be used for the radiated bandedge measurements. According to the KDB 558074 D01 V03r03, the conducted spurious emissions test method as follows: 1. Set start frequency to DTS channel edge frequency. 2. Set stop frequency so as to encompass the spectrum to be examined. 3. Set RBW = 100 kHz. 4. Set VBW ≥ 300 kHz. 5. Detector = peak. 6. Trace Mode = max hold. 7. Sweep = auto couple. 8. Allow the trace to stabilize (this may take some time, depending on the extent of the span). 9. Use peak marker function to determine maximum amplitude of all unwanted emissions within any 100 kHz bandwidth. Ensure that the amplitude of all unwanted emissions outside of the authorized frequency band (excluding restricted frequency bands) are attenuated by at least the minimum requirements specified in section 8.1. Report the three highest emissions relative to the limit. REPORT NO.: STR15118036I-2 PAGE 26 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 9.3 Environmental Conditions Temperature: 23C Relative Humidity: 54 ATM Pressure: 1011 mbar 9.4 Summary of Test Results/Plots Please refer to the test plots as below. Bandedge (Radiated) Lowest Bandedge-BLE Horizontal (Worst case) No. Frequency Reading Correct Result Limit Margin Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) 1 2310.000 18.43 16.34 34.77 54.00 -19.23 Average Detector 2310.000 30.21 16.34 46.55 74.00 -27.45 Peak Detector 2 2390.000 18.29 17.03 35.32 54.00 -18.68 Average Detector 2390.000 31.10 17.03 48.13 74.00 -25.87 Peak Detector 3 2400.000 49.54 17.11 66.65 Average Detector Delta = 23.47 dBc 4 2402.000 73.00 17.12 90.12 Average Detector REPORT NO.: STR15118036I-2 PAGE 27 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Highest Bandedge-BLE No. Frequency Reading Correct Result Limit Margin Remark (MHz) (dBuV/m) dB/m (dBuV/m) (dBuV/m) (dB) 1 2480.000 70.00 17.71 87.71 / / Average Detector 2480.000 73.81 17.71 91.52 / / Peak Detector 2 2483.500 32.57 54.00 -24.43 Average Detector Delta = 55.14 dBc 2483.500 36.38 74.00 -37.62 Peak Detector 3 2500.000 17.99 17.86 35.85 50.00 -14.15 Average Detector 2500.000 31.13 17.86 48.99 74.00 -25.01 Peak Detector REPORT NO.: STR15118036I-2 PAGE 28 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 10. Conducted Emissions 10.1 Measurement Uncertainty Base on NIS 81, The Treatment of Uncertainty in EMC Measurements, the best estimate of the uncertainty of any conducted emissions measurement is + 2.88 dB. 10.2 Test Procedure The setup of EUT is according with per ANSI C63.4-2014 measurement procedure. The specification used was with the FCC Part 15.207 Limit. The external I/O cables were draped along the test table and formed a bundle 30 to 40 cm long in the middle. The spacing between the peripherals was 10 cm. 10.3 Basic Test Setup Block Diagram EUT LISN 1.0 m 1.5 To Receiver Non-conduction table 80 cm above Ground Plane 1. 5 m REPORT NO.: STR15118036I-2 PAGE 29 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. 10.4 Environmental Conditions Temperature: 25 C Relative Humidity: 52 ATM Pressure: 1012 mbar 10.5 Test Receiver Setup During the conducted emission test, the test receiver was set with the following configurations: Start Frequency .......................................................................... 150 kHz Stop Frequency........................................................................... 30 MHz Sweep Speed .............................................................................. Auto IF Bandwidth.............................................................................. 10 kHz Quasi-Peak Adapter Bandwidth ................................................. 9 kHz Quasi-Peak Adapter Mode ......................................................... Normal 10.6 Summary of Test Results/Plots According to the data in section 10.7, the EUT complied with the FCC Part 15.207 Conducted margin for this device, with the worst margin reading of: -4.93 dB at 0.6060 MHz in the Line mode, peak detector, 0.15-30MHz 10.7 Conducted Emissions Test Data REPORT NO.: STR15118036I-2 PAGE 30 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Plot of Conducted Emissions Test Data EUT: Light bulb BT speaker Tested Model: WS102 Operating Condition: (BT)Transmitting Comment: AC 120V/60Hz Test Specification: Neutral No. Frequency Reading Correct Result Limit Margin Detector (MHz) (dBuV) (dB/m) (dBuV) (dBuV) (dB) 1 0.1740 40.83 12.50 53.33 64.77 -11.44 peak 2 0.1740 24.01 12.50 36.51 54.77 -18.26 AVG 3 0.6380 30.03 12.64 42.67 56.00 -13.33 peak 4* 0.6980 22.51 12.70 35.21 46.00 -10.79 AVG 5 1.0460 20.09 13.00 33.09 46.00 -12.91 AVG 6 1.1580 30.42 13.00 43.42 56.00 -12.58 peak REPORT NO.: STR15118036I-2 PAGE 31 OF 32 FCC PART 15.247

Shenzhen SEM.Test Technology Co., Ltd. Test Specification: Line No. Frequency Reading Correct Result Limit Margin Detector (MHz) (dBuV) (dB/m) (dBuV) (dBuV) (dB) 1 0.1740 43.41 12.50 55.91 64.77 -8.86 peak 2 0.1740 26.78 12.50 39.28 54.77 -15.49 AVG 3* 0.6060 38.46 12.61 51.07 56.00 -4.93 peak 4 0.6940 25.20 12.69 37.89 46.00 -8.11 AVG 5 1.0460 33.56 13.00 46.56 56.00 -9.44 peak 6 1.0460 21.78 13.00 34.78 46.00 -11.22 AVG ***** END OF REPORT ***** REPORT NO.: STR15118036I-2 PAGE 32 OF 32 FCC PART 15.247


Document Created: 2015-11-12 14:48:16
Document Modified: 2015-11-12 14:48:16
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