Z63-MIXCDERX1TRUE WIRELESS STEREO EARPHONES

QF094234 Page 1 of 1 Revision 0 Authority to Act as Agent Date: 2020-08-24 TUV Rheinland Group 762 Park Avenue Youngsville, NC 27596 To Whom It May Concern: I appoint TUV Rheinland (Shenzhen) Co., Ltd. to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the FCC or Industry Canada’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by TUV Rheinland Group, still resides with ShenZhen Aoni Electronic Industry Co., Ltd. / HongHui Industrial Park, 2nd LiuXian Road, Xin'An streets, District 68, Bao'an District, ShenZhen, China For TCB applications, We certify that we are not subject to denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Further, no party, as defined in 47 CFR 1.2002 (b), to the application is subject to denial of federal benefits, that includes FCC benefits. Thank you, Agency Agreement Expiration Date: 12 months By : tendy Dong (Signature) (Print Name) Title : Certification engineer Telephone : 0755-29106599 On behalf of : ShenZhen Aoni Electronic Industry Co., Ltd. (Company Name) ShenZhen Aoni Electronic Industry Co., Ltd.

ShenZhen Aoni Electronic Industry Co., Ltd. Confidentiality Letter Date: Subject: Confidentiality Request for FCC ID: Z63-MIXCDERX1 Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Exhibit Short Term Permanent Block Diagrams Short Term External Photos Short Term Permanent Internal Photos Short Term Permanent Operation Description/Theory of Operation Short Term Permanent Part List/Tune-Up Procedure Short Term Permanent Schematics Short Term Test Setup Photos Short Term Permanent User’s Manual Superior Communications has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04- 1705. Sincerely, By: tendy Dong (Signature/Title) (Print name)

Differences Description We ShenZhen Aoni Electronic Industry Co., Ltd. state: Product： TRUE WIRELESS STEREO EARPHONES Model Name： X1, X1 Silver Black, X1 Deepsea Blue, X1 Universe Black, X1 Super, X1 Gym, X1 Gold, X1 Platinum, X1 Diamond, X1 Lite, X1 Plus, X1 Pro, X1 Element, X1S, X1 Mini, X1 Max, X1 Future Brand Name： Mixcder FCC ID: Z63-MIXCDERX1 The electrical circuit design, layout, components used and internal wiring for above models are identical, Only different in model name and appearance Signatory Date 2020-8-26 Signature Name: Jayden Liu Title: Project Manager Company: Shenzhen Timekettle Technologies Co., Ltd Address: Building 3rd, Minqi Science Park, Pingshan 1st Road, Nanshan District, Shenzhen, China

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Page 1 of 3 Report No.: STS2008070 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Photo 1 Photo 2 BT Antenna Page 2 of 3 Report No.: STS2008070 Photo 3 Photo 4 Page 3 of 3 Report No.: STS2008070 Photo 5

FCC ID : Z63-MIXCDERX1 RF EXPOSURE EVALUATION METHOD SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. FCC ID : Z63-MIXCDERX1 Maximum measured transmitter power. BT5.1BR+EDR The Worst Case Mode 2402-2480MHz Detector PEAK GFSK 0±1dBm π/4-DQPSK 1±1dBm Remark: The worst case gain of the antenna is 2dBi. 2dBi logarithmic terms convert to numeric result is nearly 1.58 GFSK2.4020.561 1.258925410.3902 3 π/4-DQPSK2.4021.522 1.584893190.4913 3 Mode Limit Maximum Peak Conducted Output Power (dBm) frequency (GHz) Tune up Power(dBm) Tune up Power (mW) Result Threshold at which no SAR required is 0.4913≤ 3.0 for 1-g SAR, Separation distance is 5mm.

Any reproduction of this document must be done in full. No single part of this document may be reproduced without permission from STS, All Test Data Presented in this report is only applicable to presented Test sample. Shenzhen STS Test Services Co., Ltd. A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Bao‘an District, Shenzhen, Guang Dong, China TEL: +86-755 3688 6288 FAX: +86-755 3688 6277 E-mail:[email protected] RADIO TEST REPORT Report No.: STS2008070W01 Issued for ShenZhenAoni Electronic Industry Co., Ltd. HongHui Industrial Park, 2nd LiuXian Road, Xin'An streets, District 68, Bao'an District, ShenZhen, China Product Name: TRUE WIRELESS STEREO EARPHONES Brand Name: Mixcder Model Name: X1 Series Model: X1 Silver Black, X1 Deepsea Blue, X1 Universe Black, X1 Super, X1 Gym, X1 Gold, X1 Platinum, X1 Diamond, X1 Lite, X1 Plus, X1 Pro, X1 Element, X1S, X1 Mini, X1 Max, X1 Future FCC ID: Z63-MIXCDERX1 Test Standard: FCC Part 15.247 S T L A B S Page 2 of 62 Report No.: STS2008070W01 TEST RESULT CERTIFICATION Applicant‘s Name ................... : ShenZhenAoni Electronic Industry Co., Ltd. Address .................................. : HongHui Industrial Park, 2nd LiuXian Road, Xin'An streets, District 68, Bao'an District, ShenZhen, China Manufacture's Name .............. : ShenZhenAoni Electronic Industry Co., Ltd. Address .................................. : HongHui Industrial Park, 2nd LiuXian Road, Xin'An streets, District 68, Bao'an District, ShenZhen, China Product Description Product Name ........................ : TRUE WIRELESS STEREO EARPHONES Brand Name ........................... : Mixcder Model Name ........................... : X1 Series Model .......................... : X1 Silver Black, X1 Deepsea Blue, X1 Universe Black, X1 Super, X1 Gym, X1 Gold, X1 Platinum, X1 Diamond, X1 Lite, X1 Plus, X1 Pro, X1 Element, X1S, X1 Mini, X1 Max, X1 Future Test Standards ....................... : FCC Part15.247 Test Procedure ....................... : ANSI C63.10-2013 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of STS, this document may be altered or revised by STS, personal only, and shall be noted in the revision of the document. Date of Test ............................... : Date of receipt of test item ......... : 19 Aug. 2020 Date (s) of performance of tests : 19 Aug. 2020 ~ 22 Aug. 2020 Date of Issue ............................. : 22 Aug. 2020 Test Result ................................. : Pass Testing Engineer : (ChrisChen) Technical Manager : (Sean she) Authorized Signatory : (Vita Li) Page 3 of 62 Report No.: STS2008070W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 FREQUENCY HOPPING SYSTEM REQUIREMENTS 10 2.3 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 12 2.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 12 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 13 2.6 EQUIPMENTS LIST 14 3.EMC EMISSION TEST 15 3.1 CONDUCTED EMISSION MEASUREMENT 15 3.2 RADIATED EMISSION MEASUREMENT 19 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 31 4.1 LIMIT 31 4.2 TEST PROCEDURE 31 4.3 TEST SETUP 31 4.4 EUT OPERATION CONDITIONS 31 4.5 TEST RESULTS 32 5. NUMBER OF HOPPING CHANNEL 42 5.1 LIMIT 42 5.2 TEST PROCEDURE 42 5.3 TEST SETUP 42 5.4 EUT OPERATION CONDITIONS 42 5.5 TEST RESULTS 43 6. AVERAGE TIME OF OCCUPANCY 44 6.1 LIMIT 44 6.2 TEST PROCEDURE 44 6.3 TEST SETUP 44 6.4 EUT OPERATION CONDITIONS 44 6.5 TEST RESULTS 45 Page 4 of 62 Report No.: STS2008070W01 Table of Contents Page 7. HOPPING CHANNEL SEPARATION MEASUREMEN 49 7.1 LIMIT 49 7.2 TEST PROCEDURE 49 7.3 TEST SETUP 49 7.4 EUT OPERATION CONDITIONS 49 7.5 TEST RESULTS 50 8. BANDWIDTH TEST 54 8.1 LIMIT 54 8.2 TEST PROCEDURE 54 8.3 TEST SETUP 54 8.4 EUT OPERATION CONDITIONS 54 8.5 TEST RESULTS 55 9. OUTPUT POWER TEST 59 9.1 LIMIT 59 9.2 TEST PROCEDURE 59 9.3 TEST SETUP 59 9.4 EUT OPERATION CONDITIONS 59 9.5 TEST RESULTS 60 10. ANTENNA REQUIREMENT 61 10.1 STANDARD REQUIREMENT 61 10.2 EUT ANTENNA 61 Page 5 of 62 Report No.: STS2008070W01 Revision History Rev. Issue Date Report NO. Effect Page Contents 00 22 Aug. 2020 STS2008070W01 ALL Initial Issue Page 6 of 62 Report No.: STS2008070W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247(a)(1) Hopping Channel Separation PASS -- 15.247(a)(1)&(b)(1) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247(d) Conducted Spurious & Band Edge Emission PASS -- 15.247(a)(iii) Number of Hopping Frequency PASS -- 15.247(a)(iii) Dwell Time PASS -- 15.247(a)(1) Bandwidth PASS -- 15.205 Restricted bands of operation PASS -- Part 15.247(d)/part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ̳N/A‘ denotes test is not applicable in this Test Report. (2)All tests are according to ANSI C63.10-2013. Page 7 of 62 Report No.: STS2008070W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : A 1/F, Building B, Zhuoke Science Park, No.190 Chongqing Road, HepingShequ, Fuyong Sub-District,Bao‘an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U,where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2,providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conduc…

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Page 1 of 2 FCC ID: Z63-MIXCDERX1 DSS Setup photo Model name: X1 DSS conduction DSS radiation L Page 2 of 2 FCC ID: Z63-MIXCDERX1 DSS radiation H