2AAWE-SS60S-Nano-Ultra Portable True Wireless Earphones

Soul Electronics Limited Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date:2020-10-31 Subject; Request for Long Term Confidentiality FCC ID: 2AAWE-SS60 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Ken Chung Title: VP of Engineering

Soul Electronics Limited Suite 2108 , Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China Statement Product: S-Nano-Ultra Portable True Wireless Earphones Model: S-NANO Additional Model: SS60 Trademark: SOUL We hereby state that All models above are identical in interior structure, electrical circuits and components, and just model names are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, Signature: Date: 2020/10/31 Name: Ken Chung Company Name: Soul Electronics Limited Address: Suite 2108 , Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China Tel / Fax: (852)93426333/(852)23347948 E-Mail: [email protected]

Soul Electronics Limited Agent Authorization C ompany:Soul Electronics Limited A ddress: Suite 2108 , Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China P roduct Name:S-Nano-Ultra Portable True Wireless Earphones M odel Number(s):S-NANO, SS60 P roduct Description:S-Nano-Ultra Portable True Wireless Earphones W e authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2020-10-31 Name: Ken Chung Title: VP of Engineering Company: Soul Electronics Limited

Page 1 of 7 Appendix B: Photographs of EUT Product: S-Nano-Ultra Portable True Wireless Earphones Model: S-NANO External Photos Page 2 of 7 Page 3 of 7 Page 4 of 7 Page 5 of 7 Page 6 of 7 Page 7 of 7

Label Artwork and Location Model: S-NANO Label: Size: L*W=10*5mm FCC ID: 2AAWE-SS60 Location

Page 1 of 4 Appendix B: Photographs of EUT Product: S-Nano-Ultra Portable True Wireless Earphones Model: S-NANO Internal Photos Right Antenna Page 2 of 4 Page 3 of 4 Page 4 of 4

RF exposure evaluation FCC ID: 2AAWE-SS60 §2.1093 Radiofrequency radiation exposure evaluation: Portable Devices. According to§15.247(i) and§1.1307b(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the commission’s guidance. The 1-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, where  f(GHz) is the RF channel transmit frequency in GHz  Power and distance are rounded to the nearest mW and mm before calculation  When the minimum test separation distance is < 5 mm, a distance of 5 mm according is applied to determine SAR test exclusion.  The result is rounded to one decimal place for comparison  For EDR+BDR: Channel Frequency (GHz) Max. Power (dBm) Tune up Power (dBm) Max. Tune up Power (dBm) Max. Tune up Power (mW) Test distance (mm) Result exclusion thresholds for 1-g SAR CH 00 2.402 -0.40 -1±1 0 1.00 5 0.31 3.0 Result: Base on the calculation value, No SAR measurement is required.

Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TEST REPORT FCC ID: 2AAWE-SS60 Product: S-Nano-Ultra Portable True Wireless Earphones Model No.: S-NANO Additional Model No.: SS60 Trade Mark: SOUL Report No.: TCT201009E014 Issued Date: Oct. 20, 2020 Issued for: Soul Electronics Limited Suite 2108, Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China Issued By: Shenzhen Tongce Testing Lab. 1B/F., Building 1, Yibaolai Industrial Park, Qiaotou, Fuyong, Baoan District, Shenzhen, Guangdong, China TEL: +86-755-27673339 FAX: +86-755-27673332 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen Tongce Testing Lab. This document may be altered or revised by Shenzhen Tongce Testing Lab. personnel only, and shall be noted in the revision section of the document. The test results in the report only apply to the tested sample. Report No.: TCT201009E014 Page 2 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com TABLE OF CONTENTS 1. Test Certification ..................................................................................... 3 2. Test Result Summary .............................................................................. 4 3. EUT Description ....................................................................................... 5 4. General Information ................................................................................. 6 4.1. Test environment and mode ................................................................................. 6 4.2. Description of Support Units ................................................................................ 6 5. Facilities and Accreditations .................................................................. 7 5.1. Facilities ................................................................................................................. 7 5.2. Location ................................................................................................................. 7 5.3. Measurement Uncertainty ..................................................................................... 7 6. Test Results and Measurement Data ..................................................... 8 6.1. Antenna requirement ............................................................................................ 8 6.2. Conducted Emission ............................................................................................. 9 6.3. Conducted Output Power ................................................................................... 13 6.4. 20dB Occupy Bandwidth .................................................................................... 18 6.5. Carrier Frequencies Separation ......................................................................... 23 6.6. Hopping Channel Number .................................................................................. 28 6.7. Dwell Time ............................................................................................................ 31 6.8. Pseudorandom Frequency Hopping Sequence ................................................ 36 6.9. Conducted Band Edge Measurement ................................................................ 37 6.10.Conducted Spurious Emission Measurement .................................................. 41 6.11.Radiated Spurious Emission Measurement ..................................................... 45 Appendix A: Photographs of Test Setup Appendix B: Photographs of EUT Report No.: TCT201009E014 Page 3 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 1. Test Certification Product: S-Nano-Ultra Portable True Wireless Earphones Model No.: S-NANO Additional Model: SS60 Trade Mark: SOUL Applicant: Soul Electronics Limited Address: Suite 2108, Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China Manufacturer: Soul Electronics Limited Address: Suite 2108, Exchange Tower, 33 Wang Chiu Road, Kowloon Bay, Hong Kong, China Date of Test: Oct. 12, 2020 – Oct. 19, 2020 Applicable Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 FCC KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.10:2013 The above equipment has been tested by Shenzhen Tongce Testing Lab. and found compliance with the requirements set forth in the technical standards mentioned above. The results of testing in this report apply only to the product/system, which was tested. Other similar equipment will not necessarily produce the same results due to production tolerance and measurement uncertainties. Tested By: Date: Oct. 19, 2020 Brave Zeng Reviewed By: Date: Oct. 20, 2020 Beryl Zhao Approved By: Date: Oct. 20, 2020 Tomsin Report No.: TCT201009E014 Page 4 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 2. Test Result Summary Requirement CFR 47 Section Result Antenna Requirement §15.203/§15.247 (c) PASS AC Power Line Conducted Emission §15.207 PASS Conducted Peak Output Power §15.247 (b)(1) PASS 20dB Occupied Bandwidth §15.247 (a)(1) PASS Carrier Frequencies Separation §15.247 (a)(1) PASS Hopping Channel Number §15.247 (a)(1) PASS Dwell Time §15.247 (a)(1) PASS Radiated Emission §15.205/§15.209 PASS Band Edge §15.247(d) PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. Report No.: TCT201009E014 Page 5 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 3. EUT Description Product Name: S-Nano-Ultra Portable True Wireless Earphones Model : S-NANO Additional Model: SS60 Trade Mark: SOUL Bluetooth version: V5.0 Operation Frequency: 2402MHz~2480MHz Transfer Rate: 1/2/3 Mbits/s Number of Channel: 79 Modulation Type: GFSK, π/4-DQPSK, 8DPSK Modulation Tech…

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Report No.: TCT201009E014 Page 46 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Above 1GHz Test Mode: Transmitting mode with modulation Test Procedure: 1. The testing follows the guidelines in Spurious Radiated Emissions of ANSI C63.10:2013 Measurement Guidelines. 2. For the radiated emission test below 1GHz: The EUT was placed on a turntable with 0.8 meter above ground. The EUT was set 3 meters from the interference receiving antenna, which was mounted on the top of a variable height antenna tower. The EUT was arranged to its worst case and then tune the antenna tower (from 1 m to 4 m) and turntable (from 0 degree to 360 degrees) to find the maximum reading. A pre-amp and a high PASS filter are used for the test in order to get better signal level. For the radiated emission test above 1GHz: Place the measurement antenna on a turntable with 1.5 meter above ground, which is away from each area of the EUT determined to be a source of emissions at the specified measurement distance, while keeping the measurement antenna aimed at the source of emissions at each frequency of significant emissions, with polarization oriented for maximum response. The measurement antenna may have to be higher or lower than the EUT, depending on the radiation pattern of the emission Report No.: TCT201009E014 Page 47 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com and staying aimed at the emission source for receiving the maximum signal. The final measurement antenna elevation shall be that which maximizes the emissions. The measurement antenna elevation for maximum emissions shall be restricted to a range of heights of from 1 m to 4 m above the ground or reference ground plane. 3. Set to the maximum power setting and enable the EUT transmit continuously. 4. Use the following spectrum analyzer settings: (1) Span shall wide enough to fully capture the emission being measured; (2) Set RBW=120 kHz for f < 1 GHz, RBW=1MHz for f>1GHz ; VBW≥RBW; Sweep = auto; Detector function = peak; Trace = max hold for peak (3) For average measurement: use duty cycle correction factor method per 15.35(c). Duty cycle = On time/100 milliseconds On time =N1*L1+N2*L2+...+Nn-1*LNn-1+Nn*Ln Where N1 is number of type 1 pulses, L1 is length of type 1 pulses, etc. Average Emission Level = Peak Emission Level + 20*log(Duty cycle) Corrected Reading: Antenna Factor + Cable Loss + Read Level - Preamp Factor = Level Test results: PASS Report No.: TCT201009E014 Page 48 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 6.11.2. Test Instruments Radiated Emission Test Site (966) Name of Equipment Manufacturer Model Serial Number Calibration Due Test Receiver ROHDE&SCHW ARZ ESIB7 100197 Jul. 27, 2021 Spectrum Analyzer ROHDE&SCHW ARZ FSQ40 200061 Sep. 11, 2021 Pre-amplifier EM Electronics Corporation CO.,LTD EM30265 07032613 Sep. 02, 2021 Pre-amplifier HP 8447D 2727A05017 Sep. 02, 2021 Loop antenna ZHINAN ZN30900A 12024 Oct. 27, 2020 Broadband Antenna Schwarzbeck VULB9163 340 Sep. 04, 2022 Horn Antenna Schwarzbeck BBHA 9120D 631 Sep. 04, 2022 Horn Antenna A-INFO LB-180400-KF J211020657 Sep. 04, 2022 Antenna Mast Keleto RE-AM N/A N/A Line-4 RE-high-04 TCT N/A Sep. 02, 2021 Line-8 RE-01 TCT N/A Jul. 27, 2021 EMI Test Software Shurple Technology EZ-EMC N/A N/A Note: The calibration interval of the above test instruments is 12 months and the calibrations are traceable to international system unit (SI). Report No.: TCT201009E014 Page 49 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com 6.11.3. Test Data Duty cycle correction factor for average measurement 3-DH5 on time (One Pulse) Plot on Channel 00 Ref 10 dBm* * Offset 4 dB A LVL 3DB Att 20 dB RBW 1 MHz VBW 1 MHz MAXH SGL 1 PK Center 2.402 GHz400 μs/ SWT 4 ms -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -61.74 dBm 524.038462 μs 1 Delta 1 [T1 ] 0.70 dB 2.950321 ms Date: 12.OCT.2020 15:14:35 3-DH5 on time (Count Pulses) Plot on Channel 00 Ref 10 dBm* * Offset 4 dB A LVL 3DB Att 20 dB RBW 1 MHz VBW 1 MHz MAXH SGL 1 PK Center 2.402 GHz10 ms/ SWT 100 ms -90 -80 -70 -60 -50 -40 -30 -20 -10 0 10 1 Marker 1 [T1 ] -1.98 dBm 97.916667 ms 1 Delta 1 [T1 ] 0.65 dB 2.083333 ms Date: 12.OCT.2020 15:15:06 Note: 1. Worst case Duty cycle = on time/100 milliseconds = (2.950*26+2.083)/100=0.7878 2. Worst case Duty cycle correction factor = 20*log (Duty cycle) = -2.07dB 3. 3-DH5 has the highest duty cycle worst case and is reported. 4. The average levels were calculated from the peak level corrected with duty cycle correction factor (-2.07dB) derived from 20log (dwell time/100ms). This correction is only for signals that hop with the fundamental signal, such as band-edge and harmonic. Other spurious signals that are independent of the hopping signal would not use this correction. Report No.: TCT201009E014 Page 50 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Please refer to following diagram for individual Below 1GHz Horizontal: Report No.: TCT201009E014 Page 51 of 67 Hotline: 400-6611-140 Tel: 86-755-27673339 Fax: 86-755-27673332 http://www.tct-lab.com Vertical: Note: 1.The low frequency, which started from 9KHz~30MHz, was pre-scanned and the result which was 20dB lower than the limit line per 15.31(o) was not reported 2. Measurements were conducted in all three channels (high, middle, low) and three modulation (GFSK, Pi/4 DQPSK, 8DPSK) and the worst case Mode (Lowest channel and 8DPSK) was submitted only. 3. Freq. = Emission frequency in MHz Measurement (dBμV/m) = Reading level (dBμV) + Corr. Factor (dB) Correction Factor= Antenna Factor + Cable loss – Pre-amplifier Limit (dBμV/m) = Limit stated in standard Margin (dB) = Measurement (dBμV/m) – Limits (dBμV/m) Any value more than 10dB below limit have not been specifically reported * is meaning the worst frequency has been tested in the test …

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Page 1 of 2 Appendix A: Photographs of Test Setup Product: S-Nano-Ultra Portable True Wireless Earphones Model: S-NANO Radiated Emission Page 2 of 2 Conducted Emission