Test Report

FCC ID: TG3-HXEP410

Test Report

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FCCID_4351388

FCC PART 15.247 TEST REPORT For FKA Distributing Co., LLC 3000 N. Pontiac Trail, Commerce Township, Michigan, 48390, United States FCC ID: TG3-HXEP410 Report Type: Product Type: Original Report Ja m True Wire less Earbuds Report Number: RSZ190402801-00B Report Date: 2019-06-21 Jimmy Xiao Reviewed By: RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*”. The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity.

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B TABLE OF CONTENTS GENERAL INFORMATION .......................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .....................................................................................3 OBJECTIVE ...................................................................................................................................................................3 RELATED SUBMITTAL(S)/GRANT(S) .............................................................................................................................3 TEST METHODOLOGY ..................................................................................................................................................3 MEASUREMENT UNCERTAINTY ....................................................................................................................................4 SYSTEM TEST CONFIGURATION ..........................................................................................................................5 DESCRIPTION OF TEST CONFIGURATION ......................................................................................................................5 EQUIPMENT MODIFICATIONS .......................................................................................................................................5 EUT EXERCISE SOFTWARE ..........................................................................................................................................5 DUTY CYCLE ................................................................................................................................................................6 EXTERNAL I/O CABLE..................................................................................................................................................6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................7 SUMMARY OF TEST RESULTS ...............................................................................................................................8 TEST EQUIPMENT LIST ...........................................................................................................................................9 FCC§15.247 (i), §1.1307 (b) (1) & §2.1093 – RF EXPOSURE .....................................................................................10 APPLICABLE STANDARD ............................................................................................................................................10 FCC §15.203 - ANTENNA REQUIREMENT...........................................................................................................11 APPLICABLE STANDARD ............................................................................................................................................11 ANTENNA CONNECTOR CONSTRUCTION ....................................................................................................................11 FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS.............................................................................12 APPLICABLE STANDARD ............................................................................................................................................12 EUT SETUP ................................................................................................................................................................12 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP ..............................................................................................13 TEST PROCEDURE ......................................................................................................................................................13 CORRECTED AMPLITUDE & MARGIN CALCULATION .................................................................................................13 TEST RESULTS SUMMARY ..........................................................................................................................................13 TEST DATA ................................................................................................................................................................14 FCC §15.247(a) (2) – 6 dB EMISSION BANDWIDTH ............................................................................................21 APPLICABLE STANDARD ............................................................................................................................................21 TEST PROCEDURE ......................................................................................................................................................21 TEST DATA ................................................................................................................................................................21 FCC §15.247(b) (3) - MAXIMUM CONDUCTED OUTPUT POWER ..................................................................24 APPLICABLE STANDARD ............................................................................................................................................24 TEST PROCEDURE ......................................................................................................................................................24 TEST DATA ................................................................................................................................................................24 FCC §15.247(d) – 100 kHz BANDWIDTH OF FREQUENCY BAND EDGE .......................................................25 APPLICABLE STANDARD ............................................................................................................................................25 TEST PROCEDURE ......................................................................................................................................................25 TEST DATA ................................................................................................................................................................25 FCC §15.247(e) - POWER SPECTRAL DENSITY .................................................................................................27 APPLICABLE STANDARD ............................................................................................................................................27 TEST PROCEDURE ......................................................................................................................................................27 TEST DATA ................................................................................................................................................................27 FCC Part 15.247 Page 2 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B GENERAL INFORMATION Product Description for Equipment under Test (EUT) Product Jam True Wireless Earbuds Tested Model HX-EP410 Frequency Range Bluetooth LE: 2402~2480MHz Transmit Power Bluetooth LE: 0.83dBm Modulation Technique Bluetooth LE: GFSK Antenna Specification Chip Antenna: 0.5dBi Voltage Range DC 3.7 V from battery Date of Test 2019-04-13~2019-06-03 Sample serial number 190402801 Received date 2019-04-02 Sample/EUT Status Good condition Objective This report is prepared on behalf of FKA Distributing Co., LLC in accordance with Part 2-Subpart J, Part 15-Subparts A and C of the Federal Communication Commission’s rules. The tests were performed in order to determine compliance with FCC Part 15, Subpart C, and section 15.203, 15.205, 15.209 and 15.247 rules. Related Submittal(s)/Grant(s) FCC Part 15.247 DSS submissions with FCC ID: TG3-HXEP410. Test Methodology All measurements contained in this report were conducted with ANSI C63.10-2013, American National Standard of Procedures for Compliance Testing of Unlicensed Wireless Devices. And KDB 558074 D01 15.247 Meas Guidance v05r02. All emissions measurement was performed at Bay Area Compliance Laboratories Corp. (Shenzhen). The radiated testing was performed at an antenna-to-EUT distance of 3 meters. FCC Part 15.247 Page 3 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Measurement Uncertainty Parameter Uncertainty Occupied Channel Bandwidth ±5% RF Output Power with Power meter ±0.73dB RF conducted test with spectrum ±1.6dB AC Power Lines Conducted Emissions ±1.95dB Emissions, Below 1GHz ±4.75dB Radiated Above 1GHz ±4.88dB Temperature ±1℃ Humidity ±6% Supply voltages ±0.4% Note: Otherwise required by the applicant or Product Regulations, Decision Rule in this report did not consider the uncertainty. Test Facility The test site used by Bay Area Compliance Laboratories Corp. (Shenzhen) to collect test data is located on the 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China. The test site has been approved by the FCC under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No.: 342867, the FCC Designation No.: CN1221. The test site has been registered with ISED Canada under ISED Canada Registration Number 3062B. FCC Part 15.247 Page 4 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B SYSTEM TEST CONFIGURATION Description of Test Configuration For BLE mode, 40 channels are provided to testing: Frequency Frequency Channel Channel (MHz) (MHz) 0 2402 20 2442 1 2404 21 2444 2 2406 22 2446 3 2408 23 2448 4 2410 24 2450 5 2412 25 2452 6 2414 26 2454 7 2416 27 2456 8 2418 28 2458 9 2420 29 2460 10 2422 30 2462 11 2424 31 2464 12 2426 32 2466 13 2428 33 2468 14 2430 34 2470 15 2432 35 2472 16 2434 36 2474 17 2436 37 2476 18 2438 38 2478 19 2440 39 2480 EUT was tested with Channel 0, 19 and 39. Equipment Modifications No modification was made to the EUT tested. EUT Exercise Software Exercise software “FCC” was used. The device was tested with the worst case was performed as below: Power level Mode Data rate Low channel Middle channel High channel BLE 1M 5 5 5 FCC Part 15.247 Page 5 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Duty cycle Duty Cycle T 1/T VBW Setting Mode 10log(1/ Duty Cycle) (%) (ms) (kHz) (kHz) BLE 23.83 0.301 3.3 5.0 6.23 External I/O Cable Cable Description Length (m) From Port To / / / / FCC Part 15.247 Page 6 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Block Diagram of Test Setup 1.0 Meter EUT Non-Conductive Table 80/150 cm above Ground Plane 1.5 Meters FCC Part 15.247 Page 7 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B SUMMARY OF TEST RESULTS FCC Rules Description of Test Result §15.247 (i), §1.1307 (b) (1)& RF Exposure Compliance §2.1093 §15.203 Antenna Requirement Compliance §15.207 (a) AC Line Conducted Emissions Not Applicable §15.205, §15.209, Spurious Emissions Compliance §15.247(d) §15.247 (a)(2) 6 dB Emission Bandwidth Compliance §15.247(b)(3) Maximum Conducted Output Power Compliance §15.247(d) 100 kHz Bandwidth of Frequency Band Edge Compliance §15.247(e) Power Spectral Density Compliance Not Applicable: The EUT can’t transmit when it is charging. FCC Part 15.247 Page 8 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B TEST EQUIPMENT LIST Serial Calibration Calibration Manufacturer Description Model Number Date Due Date Radiated Emission Test A.H. System Horn Antenna SAS-200/571 135 2018-09-01 2021-08-31 Rohde & Schwarz Signal Analyzer FSEM 845987/005 2018-06-23 2019-06-23 Sunol Sciences Broadband Antenna JB1 A040904-1 2017-12-22 2020-12-21 COM-POWER Pre-amplifier PA-122 181919 2018-11-12 2019-11-12 Sonoma Instrument Amplifier 310N 186238 2018-11-12 2019-11-12 Agilent Signal Generator N5183A MY51040755 2018-12-03 2019-12-03 1316.3003K03 Rohde & Schwarz EMI Test Receiver ESR 2018-07-11 2019-07-11 -101746-zn Ducommun UFA147A- MFR64639 RF Cable 2018-11-12 2019-11-12 technologies 2362-100100 231029-003 Ducommun RF Cable 104PEA 218124002 2018-11-12 2019-11-12 technologies Ducommun RF Cable RG-214 1 2019-05-21 2019-11-19 technologies Ducommun RF Cable RG-214 2 2018-11-12 2019-11-12 technologies Ducommun ARH-4223- Horn Antenna 1007726-04 2017-12-29 2020-12-28 Technologies 02 QLW- Heatsink Required Amplifier 15964001002 2018-11-12 2019-11-12 18405536-J0 BSF2402- Sinoscite Notch Filter 2480MN- 99632 2018-11-12 2019-11-12 0898-001 Rohde & Schwarz Auto test software EMC 32 V9.10 NCR NCR Serial Calibration Calibration Manufacturer Description Model Number Date Due Date RF Conducted Test USB wideband power Agilent U2021XA MY54250003 2018-06-23 2019-06-23 meter WEINSCHEL 3dB Attenuator 6231 666 Each Time Rohde & Schwarz Spectrum Analyzer FSU26 200120 2019-03-02 2020-03-01 Ducommun RF Cable RG-214 3 Each Time technologies * Statement of Traceability: Bay Area Compliance Laboratories Corp. (Shenzhen) attests that all calibrations have been performed in accordance to requirements that traceable to National Primary Standards and International System of Units (SI). FCC Part 15.247 Page 9 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC§15.247 (i), §1.1307 (b) (1) & §2.1093 – RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b) (1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 General RF Exposure Guidance The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where 1. f(GHz) is the RF channel transmit frequency in GHz. 2. Power and distance are rounded to the nearest mW and mm before calculation. 3. The result is rounded to one decimal place for comparison. 4. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test Exclusion. Measurement Result For BLE: Max Tune-up Max Tune-up Calculated Frequency Conducted Conducted Calculated Threshold SAR Test Mode Distance (MHz) Power Power value (1-g SAR) Exclusion (mm) (dBm) (mW) BLE 2480 1.0 1.26 5 0.4 3.0 Yes Result: No SAR test is required. FCC Part 15.247 Page 10 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.203 - ANTENNA REQUIREMENT Applicable Standard According to § 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. The manufacturer may design the unit so that a broken antenna can be replaced by the user, but the user of a standard antenna jack or electrical connector is prohibited. The structure and application of the EUT were analyzed to determine compliance with section §15.203 of the rules. §15.203 state that the subject device must meet the following criteria: a. Antenna must be permanently attached to the unit. b. Antenna must use a unique type of connector to attach to the EUT. Unit must be professionally installed, and installer shall be responsible for verifying that the correct antenna is employed with the unit. And according to FCC 47 CFR section 15.247 (b), if the transmitting antennas of directional gain greater than 6dBi are used, the power shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6 dBi. Antenna Connector Construction The EUT has an internal chip antenna arrangement, which was permanently attached and the antenna gain is 0.5 dBi, fulfill the requirement of this section. Please refer to the EUT photos. Result: Compliance. FCC Part 15.247 Page 11 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.209, §15.205 & §15.247(d) - SPURIOUS EMISSIONS Applicable Standard FCC §15.247 (d); §15.209; §15.205; EUT Setup Below 1 GHz: Above 1GHz: The radiated emission tests were performed in the 3 meters test site, using the setup accordance with the ANSI C63.10-2013. The specification used was the FCC 15.209, and FCC 15.247 limits. FCC Part 15.247 Page 12 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B EMI Test Receiver & Spectrum Analyzer Setup The system was investigated from 30 MHz to 25 GHz. During the radiated emission test, the EMI test receiver & Spectrum Analyzer Setup were set with the following configurations: Frequency Range RBW Video B/W IF B/W Measurement 30 MHz – 1000 MHz 100 kHz 300 kHz 120 kHz QP 1MHz 3 MHz / PK Note 1 Above 1 GHz 1MHz 10 Hz / Average Note 2 1MHz ＞1/T / Average Note 1: when duty cycle is no less than 98% Note 2: when duty cycle is less than 98% Test Procedure Maximizing procedure was performed on the highest emissions to ensure that the EUT complied with all installation combinations. Data was recorded in Quasi-peak detection mode for frequency range of 30 MHz-1 GHz, peak and Average detection modes for frequencies above 1 GHz. Corrected Amplitude & Margin Calculation The Corrected Amplitude is calculated by adding the Antenna Factor and Cable Loss, and subtracting the Amplifier Gain from the Meter Reading. The basic equation is as follows: Corrected Amplitude = Meter Reading + Antenna Factor + Cable Loss - Amplifier Gain The “Margin” column of the following data tables indicates the degree of compliance with the applicable limit. For example, a margin of 7dB means the emission is 7dB below the limit. The equation for margin calculation is as follows: Margin = Limit – Corrected Amplitude Test Results Summary According to the recorded data in following table, the EUT complied with the FCC Title 47, Part 15, Subpart C, section 15.205, 15.209 and 15.247. Refer to CISPR16-4-2:2011 and CISPR 16-4-1:2009, the measured level complies with the limit if Lm + U(Lm) ≤ Llim + Ucispr In BACL, U(Lm) is less than Ucispr, if Lm is less than Llim, it implies that the EUT complies with the limit. FCC Part 15.247 Page 13 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 56 % ATM Pressure: 101.0 kPa The testing was performed by Leo Huang and Andy Yu on 2019-05-28. EUT operation mode: Transmitting FCC Part 15.247 Page 14 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B 30 MHz~1 GHz (Low channel was the worst case): 80 70 60 FCC Part 15.247 Electric Field Strength QP-3m 50 Level in dBμV/ 40 30 20 10 0 30M 50 60 80 100M 200 300 400 500 800 1G Frequency in Hz Corrected Antenna Turntable Correction Frequency Antenna Limit Margin Amplitude height position Factor (MHz) Polarity (dBμV/m) (dB) (dBμV/m) (cm) (degree) (dB/m) 31.091250 20.10 202.0 H 347.0 -8.3 40.00 19.90 36.183750 18.15 202.0 H 135.0 -11.3 40.00 21.85 71.467500 14.55 300.0 H 0.0 -20.5 40.00 25.45 585.931250 27.12 300.0 H 170.0 -2.7 46.00 18.88 683.173750 28.39 300.0 V 192.0 -2.0 46.00 17.61 838.131250 35.81 102.0 H 294.0 5.8 46.00 10.19 FCC Part 15.247 Page 15 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B 1 GHz-25 GHz: Receiver Rx Antenna Corrected Corrected Frequency Turntable Limit Margin (MHz) Reading Degree Height Polar Factor Amplitude (dBμV/m) (dB) PK/QP/Ave. (dBμV) (m) (H/V) (dB/m) (dBμV/m) Low Channel (2402 MHz) 2326.06 27.57 PK 331 1.7 H 31.64 59.21 74 14.79 2326.06 15.40 Ave. 331 1.7 H 31.64 47.04 54 6.96 2487.36 26.73 PK 237 2.4 H 32.13 58.86 74 15.14 2487.36 14.81 Ave. 237 2.4 H 32.13 46.94 54 7.06 4804.00 43.95 PK 263 1.1 H 6.28 50.23 74 23.77 4804.00 33.83 Ave. 263 1.1 H 6.28 40.11 54 13.89 Middle Channel (2440 MHz) 4880.00 44.41 PK 55 2.1 H 6.76 51.17 74 22.83 4880.00 32.20 Ave. 55 2.1 H 6.76 38.96 54 15.04 High Channel (2480 MHz) 2345.54 27.53 PK 110 1.8 H 31.64 59.17 74 14.83 2345.54 15.39 Ave. 110 1.8 H 31.64 47.03 54 6.97 2494.44 27.02 PK 159 2.2 H 32.13 59.15 74 14.85 2494.44 16.41 Ave. 159 2.2 H 32.13 48.54 54 5.46 4960.00 44.34 PK 208 2.5 H 6.80 51.14 74 22.86 4960.00 32.51 Ave. 208 2.5 H 6.80 39.31 54 14.69 Note: Corrected Factor = Antenna factor (RX) + Cable Loss – Amplifier Factor Corrected Amplitude = Corrected Factor + Reading Margin = Limit - Corrected. Amplitude The other spurious emission which is 20dB to the limit was not recorded. And for the pre-scan is performed with the 2400-2483.5MHz band filter. FCC Part 15.247 Page 16 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Pre-scan with BLE, High channel Horizontal FCC Part 15.247 Page 17 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Vertical FCC Part 15.247 Page 18 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Pre-scan for Average Horizontal FCC Part 15.247 Page 19 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Vertical FCC Part 15.247 Page 20 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.247(a) (2) – 6 dB EMISSION BANDWIDTH Applicable Standard 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. Test Procedure 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Position the EUT without connection to measurement instrument. Turn on the EUT and connect it to measurement instrument. Then set it to any one convenient frequency within its operating range. Set a reference level on the measuring instrument equal to the highest peak value. 3. Measure the frequency difference of two frequencies that were attenuated 6 dB from the reference level. Record the frequency difference as the emission bandwidth. 4. Repeat above procedures until all frequencies measured were complete. Signal Analyzer EUT Attenuator Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 52 % ATM Pressure: 101.0 kPa The testing was performed by George Zhong on 2019-04-13. Test Result: Pass. Please refer to the following table and plots. FCC Part 15.247 Page 21 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B EUT operation mode: Transmitting 6 dB Frequency Limit Channel Emission Bandwidth (MHz) (kHz) (MHz) BLE mode Low 2402 0.704 ≥500 Middle 2440 0.711 ≥500 High 2480 0.717 ≥500 BLE Low Channel * RBW 100 kHz Delta 1 [T1 ] * VBW 300 kHz -0.39 dB Ref 20 dBm * Att 20 dB SWT 2.5 ms 703.846153841 kHz 20 Offset 3.5 dB Marker 1 [T1 ] -3.99 dBm 10 2.401671795 GHz A 1 PK MAXH D1 1.9 dBm 0 1 1 LVL D2 -4.1 dBm -10 -20 -30 3DB -40 -50 -60 -70 -80 Center 2.402 GHz 200 kHz/ Span 2 MHz Date: 13.APR.2019 16:36:05 FCC Part 15.247 Page 22 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B BLE Middle Channel * RBW 100 kHz Delta 1 [T1 ] * VBW 300 kHz -0.11 dB Ref 20 dBm * Att 20 dB SWT 2.5 ms 710.897435902 kHz 20 Offset 3.5 dB Marker 1 [T1 ] -4.37 dBm 10 2.439666667 GHz A 1 PK MAXH D1 1.6 dBm 0 1 1 LVL D2 -4.4 dBm -10 -20 -30 3DB -40 -50 -60 -70 -80 Center 2.44 GHz 200 kHz/ Span 2 MHz Date: 13.APR.2019 16:40:29 BLE High Channel * RBW 100 kHz Delta 1 [T1 ] * VBW 300 kHz -0.66 dB Ref 20 dBm * Att 20 dB SWT 2.5 ms 716.666666662 kHz 20 Offset 3.5 dB Marker 1 [T1 ] -4.53 dBm 10 2.479665385 GHz A 1 PK MAXH D1 1.3 dBm 0 1 1 LVL D2 -4.7 dBm -10 -20 -30 3DB -40 -50 -60 -70 -80 Center 2.48 GHz 200 kHz/ Span 2 MHz Date: 13.APR.2019 16:43:47 FCC Part 15.247 Page 23 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.247(b) (3) - MAXIMUM CONDUCTED OUTPUT POWER Applicable Standard According to FCC §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. As an alternative to a peak power measurement, compliance with the one Watt limit can be based on a measurement of the maximum conducted output power. Maximum Conducted Output Power is defined as the total transmit power delivered to all antennas and antenna elements averaged across all symbols in the signaling alphabet when the transmitter is operating at its maximum power control level. Power must be summed across all antennas and antenna elements. The average must not include any time intervals during which the transmitter is off or is transmitting at a reduced power level. If multiple modes of operation are possible (e.g., alternative modulation methods), the maximum conducted output power is the highest total transmit power occurring in any mode. Test Procedure 1. Place the EUT on a bench and set it in transmitting mode. 2. Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to one test equipment. 3. Add a correction factor to the display. Power Meter EUT Attenuator Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 52 % ATM Pressure: 101.0 kPa The testing was performed by George Zhong on 2019-06-03. EUT operation mode: Transmitting Max Peak Output Frequency Limit Channel Power Result (MHz) (dBm) (dBm) Low 2402 0.83 30 Pass Middle 2440 0.63 30 Pass High 2480 0.36 30 Pass FCC Part 15.247 Page 24 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.247(d) – 100 kHz BANDWIDTH OF FREQUENCY BAND EDGE Applicable Standard 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) (see §15.205(c)). Test Procedure 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Position the EUT without connection to measurement instrument. Turn on the EUT and connect its antenna terminal to measurement instrument via a low loss cable. Then set it to any one measured frequency within its operating range, and make sure the instrument is operated in its linear range. 3. Set RBW to 100 kHz and VBW of spectrum analyzer to 300 kHz with a convenient frequency span including 100 kHz bandwidth from band edge. 4. Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot the graph with marking the highest point and edge frequency. 5. Repeat above procedures until all measured frequencies were complete. Signal Analyzer EUT Attenuator Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 52 % ATM Pressure: 101.0 kPa The testing was performed by George Zhong on 2019-04-19. EUT operation mode: Transmitting Test Result: Compliance Please refer to the following plots. FCC Part 15.247 Page 25 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B BLE: Band Edge, Left Side * RBW 100 kHz Marker 1 [T1 ] * VBW 300 kHz -47.67 dBm Ref 23.5 dBm * Att 20 dB * SWT 5 ms 2.399907692 GHz Offset 3.5 dB 20 A 10 1 PK MAXH D1 1.6 dBm LVL 0 -10 D2 -18.4 dBm -20 -30 3DB -40 1 -50 -60 -70 Center 2.4 GHz 1.2 MHz/ Span 12 MHz Date: 19.APR.2019 15:01:22 BLE: Band Edge, Right Side * RBW 100 kHz Marker 1 [T1 ] * VBW 300 kHz -52.29 dBm Ref 23.5 dBm * Att 20 dB * SWT 5 ms 2.488111538 GHz Offset 3.5 dB 20 A 10 1 PK MAXH D1 1.2 dBm LVL 0 -10 D2 -18.8 dBm -20 -30 3DB -40 -50 1 -60 -70 Center 2.4835 GHz 1.2 MHz/ Span 12 MHz Date: 19.APR.2019 14:58:54 FCC Part 15.247 Page 26 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B FCC §15.247(e) - POWER SPECTRAL DENSITY Applicable Standard 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. This power spectral density shall be determined in accordance with the provisions of paragraph (b) of this section. The same method of determining the conducted output power shall be used to determine the power spectral density. Test Procedure 1. Use this procedure when the maximum peak conducted output power in the fundamental emission is used to demonstrate compliance. 2. Set the RBW to: 3kHz≤ RBW≤100 kHz. 3. Set the VBW ≥ 3×RBW. 4. Set the span to 1.5 times the DTS bandwidth. 5. Detector = peak. 6. Sweep time = auto couple. 7. Trace mode = max hold. 8. Allow trace to fully stabilize. 9. Use the peak marker function to determine the maximum amplitude level within the RBW. 10. If measured value exceeds limit, reduce RBW (no less than 3 kHz) and repeat. Signal Analyzer EUT Attenuator Test Data Environmental Conditions Temperature: 25 ℃ Relative Humidity: 52 % ATM Pressure: 101.0 kPa The testing was performed by George Zhong on 2019-04-13 and 2019-04-19. EUT operation mode: Transmitting Test Result: Pass Frequency PSD Limit Channel (MHz) (dBm/3kHz) (dBm/3kHz) BLE mode Low 2402 -12.80 ≤8 Middle 2440 -13.29 ≤8 High 2480 -13.53 ≤8 FCC Part 15.247 Page 27 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Power Spectral Density, BLE Low Channel * RBW 3 kHz Marker 1 [T1 ] * VBW 10 kHz -12.80 dBm Ref 10 dBm * Att 20 dB SWT 120 ms 2.402101923 GHz 10 Offset 3.5 dB A 0 1 PK MAXH 1 -10 LVL -20 -30 -40 3DB -50 -60 -70 -80 -90 Center 2.402 GHz 106 kHz/ Span 1.06 MHz Date: 13.APR.2019 17:02:12 Power Spectral Density, BLE Middle Channel * RBW 3 kHz Marker 1 [T1 ] * VBW 10 kHz -13.29 dBm Ref 10 dBm * Att 20 dB SWT 120 ms 2.440108029 GHz 10 Offset 3.5 dB A 0 1 PK MAXH -10 1 LVL -20 -30 -40 3DB -50 -60 -70 -80 -90 Center 2.44 GHz 107 kHz/ Span 1.07 MHz Date: 13.APR.2019 17:04:29 FCC Part 15.247 Page 28 of 29

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ190402801-00B Power Spectral Density, BLE High Channel * RBW 3 kHz Marker 1 [T1 ] * VBW 10 kHz -13.53 dBm Ref 26 dBm * Att 25 dB SWT 120 ms 2.480098654 GHz Offset 3.5 dB 20 A 1 PK 10 MAXH LVL 0 -10 1 -20 -30 3DB -40 -50 -60 -70 Center 2.48 GHz 108 kHz/ Span 1.08 MHz Date: 19.APR.2019 15:15:47 ***** END OF REPORT ***** FCC Part 15.247 Page 29 of 29


Document Created: 2019-07-11 10:41:10
Document Modified: 2019-07-11 10:41:10
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