2ATIH-EP-T31Jiaguang Zhou

1. 2. 1. 2. 3. 1. 2. 3. 4. User Manual True Wireless Earbuds English Deutsch Français Español Italiano 01~16 17~31 32~46 47~61 62~76 77~90 Contents Model: EP-T31 Aukey Technology Co., Ltd. www.aukey.com | [email protected] Building P09, South China City Electronics Trading Center, Longgang District, Shenzhen, Guangdong, 518111, China FCC ID: Thank you for purchasing the AUKEY EP-T31 True Wireless Earbuds. Please read this user manual carefully and keep it for future reference. If you need any assistance, please contact our support team with your product model number and Amazon order number. True Wireless Earbuds Charging Case Three Pairs of Ear-Tips (S/M/L) USB-A to C Cable User Manual Quick Start Guide Warranty Card Package Contents Product DiagramSpecifications Earbuds Getting StartedTurning On / Off Pairing Charging Fully charge the charging case before first use. To charge, connect the case to a USB charger or charging port with the included USB-A to C cable (or put the case on a wireless charger). When all three LED battery level indicator lights are solid white, the case is fully charged. Charging takes around 2 hours, and after being fully charged, the case can fully charge the earbuds 5 times. The earbuds should be stored in the case when not in use. Starting with the earbuds in the case: 1. 2. 3. 4. Take the left and right earbuds out of the case. They will turn on automatically and connect with each other within 5 seconds After the earbuds have connected successfully, the LED status indicator on the master earbud will flash white slowly. This indicates the earbuds are ready to pair From the list of available devices, find and select “AUKEY EP-T31” If a code or PIN is required for pairing, enter “0000” Using the Left/Right Earbud Only Starting with the earbuds in the case: 1. 2. 3. Take the left/right earbud out Turn on the pairing function on the device you want to pair with the earbud From the list of available devices, find and select “AUKEY EP-T31” Regular Use After Pairing Once the earbuds are successfully paired with your device, they can be switched on and off as follows: Take the earbuds out of the charging case and they will turn on and connect with each other automatically To power off, put the earbuds back in the charging case and they will begin charging Low-Latency Mode For the best experience when watching videos & movies or playing games, the video output on your device and the audio output from earbuds should be in sync. The EP-T31 earbuds feature a Low-Latency Mode to ensure sound output precisely matches video output. Turn it on or off by triple-tapping the touch-sensitive panel on the right earbud while the earbuds are connected. When only playing music or outputting other audio without any video, Low-Latency Mode isn’t needed so it’s recommended to leave it off for best-possible connection quality. Once paired, you can wirelessly stream audio from your device to the earbuds. Music will automatically pause when you receive an incoming phone call and resume once the call has ended. Clearing the Pairing List Starting with the earbuds in the case: 1. 2. Simultaneously touch and hold on the touch-sensitive panels on both earbuds for 10 seconds. The LED status indicators on both earbuds will flash red and white alternately three times and the pairing list will be cleared Take the earbuds out of the charging case. They will turn on, connect with each other, and enter pairing mode Controls & LED Indicators Streaming Audio The infrared proximity sensor of the EP-T31 earbuds pauses music when you remove the earbuds from your ears and resumes playback when you put the earbuds back in Note Taking Calls The sound isn’t very clear or the caller can’t hear my voice clearly Adjust the volume on your smartphone and the earbuds. Try moving closer to your smartphone to rule out the possibility of interference or wireless range-related issues. What’s the wireless range of the earbuds? The maximum range is 10m (33ft). However, the actual range depends on environmental factors. For optimal performance, keep your device connected within a range of roughly 4m to 8m and make sure that there are no major obstacles (like reinforced steel walls) between the earbuds and your device. For the earbuds and your device to establish a connection, you need to put them both in pairing mode. Please follow the instructions in the Pairing section of this manual. FAQ The earbuds are on, but not connecting to my device The earbuds won’t turn on Try charging the earbuds for a while. If the earbuds still won’t power on, please contact our support team at the email address given in Warranty & Customer Support. I put the earbuds back in the charging case, but the earbuds are still connected The charging case is probably out of power. Try charging it. Charging Case Model Technology Driver (each channel) Sensitivity Frequency Range Impedance Microphone Type Microphone Sensitivity Microphone Frequency Range Charging Time Battery Type Operating Range IP Rating Weight Charging Input Charging Time Battery Type Number of Earbuds Recharges Weight EP-T31 BT 5, HSP, HFP, A2DP, AVRCP, AAC 1 x 7mm / 0.28” speaker driver 97dB ±3dB SPL (at 1kHz/1mW) 20Hz – 20kHz 16 ohm ±15% MEMS (microphone chip) -39dB ±4dB (at 1kHz ref 1V/Pa) 100Hz – 10kHz 2 hours Li-polymer (2 x 43mAh) 10m / 33ft IPX5 8g / 0.27oz (pair) DC 5V 2 hours (cable), 3 hours (wireless charger) Li-polymer (580mAh) 5 times (pair) 38g / 1.35oz Turn On Turn Off Remove both earbuds from the charging case or touch and hold on the touch-sensitive panels on both earbuds for 2 seconds when they are turned off Return both earbuds to the charging case or touch and hold on the touch-sensitive panels on both earbuds for 5 seconds when they are turned on Play or pause Skip to next track Skip to previous track Double-tap the touch-sensitive panel on right earbud Double-tap the touch-sensitive panel on left earbud Tap the touch-sensitive panel on either earbud Answer or en…

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ModelNo.:EP-T31 IC:24100-EPT31 FCCID:2ATIH-EP-T31 Thedevicehaveleftandrightearphones，leftandright earphoneareelectricallyidentical <Signature> Name:JiaguangZhou Title:Manager ApplicantCompany:AukeyTechnonogyCo,Ltd.

DATE: 2021-4-12 Equipment Autorisation Division Federal Communications Commis sion 7 435 Oakland Mills Road Columbia, MD 21046 FCC ID: Product Name: True Wireless Earbuds Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that t he following documents be held confidential: ( List here the documents for which you are seeking confidentiality - for example ... ) • Schematics • Block diagram • Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Jiaguang Zhou J 1 �� lA. � ]; � Title: Manager ' Applicant Company: Aukey Techno ogy 'o ,Ltd. 2ATIH-EP-T31

Model No.: EP-T31

Model No.: EP-T31

RF Exposure Evaluation Statement Product Name: True Wireless Earbuds Model No.：EP-T31 FCC ID：2ATIH-EP-T31 1.1 RF Exposure Compliance Requirement 1.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 1.1.2 Limits 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 17 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 1.1.3 EUT RF Exposure Operational Mode: EDR （8-DPSK worst case） Channel Maximum Peak Conducted Output Power (dBm) Tune up tolerance (dB) Maximum tune-up Power Calculated value Exclusion threshold (dBm) (mW) 2402MHZ 3.94 ±1 4.94 3.12 0.97 3.0 2441MHz 4.70 ±1 5.70 3.72 1.16 2480MHz 4.58 ±1 5.58 3.61 1.14 Operational Mode: BLE（worst case） 3.0 2402 1.38 ±1 2.38 1.73 0.54 2442 1.27 ±1 2.27 1.69 0.53 2480 0.96 ±1 1.96 1.57 0.49 Conclusion: the calculated value ≤3.0, SAR is exempted.

Page 1 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Add: Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TEST REPORT Product Name : True Wireless Earbuds Brand Mark : AUKEY Model No. : EP-T31 FCC ID : 2ATIH-EP-T31 Report Number : BLA-EMC-202103-A7203 Date of Sample Receipt : 2021/3/22 Date of Test : 2021/3/22 to 2021/4/7 Date of Issue : 2021/4/8 Test Standard : 47 CFR Part 15, Subpart C 15.247 Test Result : Pass Prepared for: Aukey Technology Co.,Ltd Room 102, Building P09, South China, City Electronics Trading Center, Longgang District, Shenzhen, Guangdong, 518111, China Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by: Review by: Approved by: Date: 2021/4/8 Report No.: BLA-EMC-202103-A7203 Page 2 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No. Date Description 00 2021/4/8 Original Report No.: BLA-EMC-202103-A7203 Page 3 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY ........................................................................................................................................6 2 GENERAL INFORMATION .........................................................................................................................7 3 GENERAL DESCRIPTION OF E.U.T. .........................................................................................................7 4 TEST ENVIRONMENT ................................................................................................................................8 5 TEST MODE ................................................................................................................................................8 6 MEASUREMENT UNCERTAINTY ..............................................................................................................8 7 DESCRIPTION OF SUPPORT UNIT...........................................................................................................9 8 LABORATORY LOCATION .........................................................................................................................9 9 TEST INSTRUMENTS LIST ..................................................................................................................... 10 1 ANTENNA REQUIREMENT ..................................................................................................................... 14 1.1 CONCLUSION ............................................................................................................................................................ 14 2 CONDUCTED BAND EDGES MEASUREMENT ..................................................................................... 15 2.1 LIMITS ................................................................................................................................................................... 15 2.2 BLOCK DIAGRAM OF TEST SETUP .......................................................................................................................... 15 2.3 TEST DATA .............................................................................................................................................................. 16 3 CONDUCTED SPURIOUS EMISSIONS .................................................................................................. 17 3.1 LIMITS ................................................................................................................................................................... 17 3.2 BLOCK DIAGRAM OF TEST SETUP .......................................................................................................................... 17 3.3 TEST DATA .............................................................................................................................................................. 18 4 DWELL TIME ............................................................................................................................................ 19 4.1 LIMITS ................................................................................................................................................................... 19 4.2 BLOCK DIAGRAM OF TEST SETUP .......................................................................................................................... 19 4.3 TEST DATA .............................................................................................................................................................. 20 5 HOPPING CHANNEL NUMBER .............................................................................................................. 21 5.1 LIMITS ................................................................................................................................................................... 21 5.2 BLOCK DIAGRAM OF TEST SETUP .......................................................................................................................... 21 5.3 TEST DATA .............................................................................................................................................................. 21 6 RADIATED SPURIOUS EMISSIONS ....................................................................................................... 22 6.1 LIMITS ................................................................................................................................................................... 22 Report No.: BLA-EMC-202103-A7203 Page 4 of85 BlueAsia of Technical …

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Report No.: BLA-EMC-202103-A7203 Page 48 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10 APPENDIX Appendix1 10.1 APPENDIX A: 20DB EMISSION BANDWIDTH Test Result TestMode Antenna Channel 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 1.113 2401.490 2402.603 --- PASS 2441 1.107 2440.493 2441.600 --- PASS 2480 1.113 2479.490 2480.603 --- PASS 2DH1 Ant1 2402 1.359 2401.358 2402.717 --- PASS 2441 1.356 2440.361 2441.717 --- PASS 2480 1.359 2479.358 2480.717 --- PASS 3DH1 Ant1 2402 1.332 2401.385 2402.717 --- PASS 2441 1.332 2440.385 2441.717 --- PASS 2480 1.332 2479.385 2480.717 --- PASS Report No.: BLA-EMC-202103-A7203 Page 49 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 2DH1_Ant1_2402 Report No.: BLA-EMC-202103-A7203 Page 50 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2DH1_Ant1_2441 2DH1_Ant1_2480 3DH1_Ant1_2402 Report No.: BLA-EMC-202103-A7203 Page 51 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 3DH1_Ant1_2441 3DH1_Ant1_2480 Report No.: BLA-EMC-202103-A7203 Page 52 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.2 APPENDIX B: OCCUPIED CHANNEL BANDWIDTH Test Result TestMode Antenna Channel OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 0.86968 2401.609 2402.479 --- PASS 2441 0.87610 2440.607 2441.483 --- PASS 2480 0.87715 2479.606 2480.484 --- PASS 2DH1 Ant1 2402 1.1558 2401.462 2402.618 --- PASS 2441 1.1556 2440.461 2441.617 --- PASS 2480 1.1545 2479.464 2480.618 --- PASS 3DH1 Ant1 2402 1.1395 2401.485 2402.624 --- PASS 2441 1.1417 2440.488 2441.629 --- PASS 2480 1.1414 2479.487 2480.628 --- PASS Report No.: BLA-EMC-202103-A7203 Page 53 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 2DH1_Ant1_2402 Report No.: BLA-EMC-202103-A7203 Page 54 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2DH1_Ant1_2441 2DH1_Ant1_2480 3DH1_Ant1_2402 Report No.: BLA-EMC-202103-A7203 Page 55 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 3DH1_Ant1_2441 3DH1_Ant1_2480 Report No.: BLA-EMC-202103-A7203 Page 56 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.3 APPENDIX C: MAXIMUM CONDUCTED OUTPUT POWER Test Result TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict DH1Ant1 2402 1.02 <=20.97 PASS 2441 1.79 <=20.97 PASS 2480 1.84 <=20.97 PASS 2DH1Ant1 2402 3.43 <=20.97 PASS 2441 4.11 <=20.97 PASS 2480 4.02 <=20.97 PASS 3DH1Ant1 2402 3.94 <=20.97 PASS 2441 4.70 <=20.97 PASS 2480 4.58 <=20.97 PASS Report No.: BLA-EMC-202103-A7203 Page 57 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_2402 DH1_Ant1_2441 DH1_Ant1_2480 Report No.: BLA-EMC-202103-A7203 Page 58 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2DH1_Ant1_2402 2DH1_Ant1_2441 2DH1_Ant1_2480 Report No.: BLA-EMC-202103-A7203 Page 59 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 3DH1_Ant1_2402 3DH1_Ant1_2441 3DH1_Ant1_2480 Report No.: BLA-EMC-202103-A7203 Page 60 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202103-A7203 Page 61 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.4 APPENDIX D: CARRIER FREQUENCY SEPARATION Test Result TestMode Antenna Channel Result[MHz] Limit[MHz] Verdict DH1 Ant1 Hop 1.002 >=0.742 PASS 2DH1 Ant1 Hop 1.002 >=0.906 PASS 3DH1 Ant1 Hop 1.006 >=0.888 PASS Report No.: BLA-EMC-202103-A7203 Page 62 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_Hop 2DH1_Ant1_Hop 3DH1_Ant1_Hop Report No.: BLA-EMC-202103-A7203 Page 63 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.5 APPENDIX E: TIME OF OCCUPANCY Test Result TestMode Antenna Channel BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH1 Ant1 Hop 0.38 320 0.121 <=0.4 PASS DH3 Ant1 Hop 1.63 190 0.31 <=0.4 PASS DH5 Ant1 Hop 2.88 130 0.375 <=0.4 PASS Report No.: BLA-EMC-202103-A7203 Page 64 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_Hop DH3_Ant1_Hop Report No.: BLA-EMC-202103-A7203 Page 65 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com DH5_Ant1_Hop Report No.: BLA-EMC-202103-A7203 Page 66 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.6 APPENDIX F: NUMBER OF HOPPING CHANNELS Test Result TestMode Antenna Channel Result[Num] Limit[Num] Verdict DH1 Ant1 Hop 79 >=15 PASS 2DH1 Ant1 Hop 79 >=15 PASS 3DH1 Ant1 Hop 79 >=15 PASS Report No.: BLA-EMC-202103-A7203 Page 67 of85 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1_Hop 2DH1_Ant1_Hop 3DH1_Ant1_Hop Report No.: BLA-EMC-20…

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Model No.: EP-T31