2ATIH-EPT31True Wireless Earbuds

1. 2. 1. 2. 3. 1. 2. 3. 4. 材质：105g 铜版纸 尺寸：60*80mm 装订方式：骑马钉 印刷颜色：单黑 注：封面背面不印刷 User Manual True Wireless Earbuds English Deutsch Français Español Italiano 01~15 16~30 31~45 46~60 61~75 76~89 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: 2ATIH-EPT31 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 four 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 e…

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ProductName:TrueWirelessEarbuds ModelNo.:EP-T31 FCCID:2ATIH-EPT31 Thedevicehaveleftandrightearphones,left andrightearphonesareelectricallyidentical. <Signature> Name ： JiaguangZhou Title ： Manager ApplicantCompany ： AukeyTechnologyCo.,Ltd

DATE：2021-3-4 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2ATIH-EPT31 Product Name: TrueWirelessEarbuds Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...) •Schemati cs •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 Title：Manager Applicant Company：AukeyTechnologyCo.,Ltd

Model No.: EP-T31

EP-T31 TrueWirelessEarbuds Input：5V⎓500mA（forchargingbox） Output：5V⎓150mA（forchargingbox） Input：5V⎓100mA（forearphone） AukeyTechnologyCo.,Ltd FCCID:2ATIH-EPT31

Model No.: EP-T31

RF Exposure Evaluation Statement Product Name : True Wireless Earbuds Model No.：EP-T31 FCC ID：2ATIH-EPT31 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 4.65 ±1 5.65 3.67 1.14 3.0 2441MHz 4.73 ±1 5.73 3.74 1.17 2480MHz 4.33 ±1 5.33 3.41 1.07 Operational Mode: BLE（worst case） 3.0 2402MHz 1.54 ±1 2.54 1.79 0.56 2442MHz 1.89 ±1 2.89 1.95 0.61 2480MHz 1.54 ±1 2.54 1.79 0.57 Conclusion: the calculated value ≤3.0, SAR is exempted.

Page 1 of91 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-EPT31 Report Number : BLA-EMC-202007-A5101 Date of Sample Receipt : 2020/7/17 Date of Test : 2020/7/17 to 2020/7/31 Date of Issue : 2021/3/5 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,Long gang 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: 2021/3/5 Report No.: BLA-EMC-202007-A5101 Page 2 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No. Date Description 00 2020/8/3 Original 01 2021/3/5 Replace the applicant, product name and model Report No.: BLA-EMC-202007-A5101 Page 3 of91 BlueAsia Technology Services(Shenzhen) Limited 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 ANTENNA REQUIREMENT .............................................................................................................................. 14 CONCLUSION ...................................................................................................................................................................... 14 CONDUCTED SPURIOUS EMISSIONS ........................................................................................................... 15 LIMITS ............................................................................................................................................................................. 15 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................................... 15 TEST DATA ........................................................................................................................................................................ 16 CONDUCTED EMISSIONS AT AC POWER LINE (150KHZ-30MHZ) ............................................................. 17 LIMITS ............................................................................................................................................................................. 17 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................................... 17 PROCEDURE ................................................................................................................................................................... 17 TEST DATA ........................................................................................................................................................................ 19 RADIATED SPURIOUS EMISSIONS ............................................................................................................... 21 LIMITS ............................................................................................................................................................................. 21 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................................... 22 PROCEDURE ................................................................................................................................................................... 22 TEST DATA ........................................................................................................................................................................ 24 RADIATED EMISSIONS WHICH FALL IN THE RESTRICTED BANDS ......................................................... 32 LIMITS ............................................................................................................................................................................. 32 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................................... 33 PROCEDURE ..............................................................................................................…

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Report No.: BLA-EMC-202007-A5101 Page 46 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10 APPENDIX Appendix1 10.1 APPENDIX: 20DBEMISSION BANDWIDTH Test Result TestMode Antenna Channel 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH1 Ant1 2402 1.095 2401.469 2402.564 --- PASS 2441 1.098 2440.466 2441.564 --- PASS 2480 1.098 2479.466 2480.564 --- PASS 2DH1 Ant1 2402 1.359 2401.328 2402.687 --- PASS 2441 1.359 2440.328 2441.687 --- PASS 2480 1.356 2479.328 2480.684 --- PASS 3DH1 Ant1 2402 1.329 2401.355 2402.684 --- PASS 2441 1.332 2440.352 2441.684 --- PASS 2480 1.332 2479.352 2480.684 --- PASS Report No.: BLA-EMC-202007-A5101 Page 47 of91 BlueAsia Technology Services(Shenzhen) Limited 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-202007-A5101 Page 48 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2DH1_Ant1_2441 2DH1_Ant1_2480 3DH1_Ant1_2402 Report No.: BLA-EMC-202007-A5101 Page 49 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 3DH1_Ant1_2441 3DH1_Ant1_2480 Report No.: BLA-EMC-202007-A5101 Page 50 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.2 APPENDIX: MAXIMUM CONDUCTED OUTPUT POWER Test Result TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict DH1 Ant1 2402 1.77 <=20.97 PASS 2441 1.89 <=20.97 PASS 2480 1.57 <=20.97 PASS 2DH1 Ant1 2402 4.03 <=20.97 PASS 2441 4.15 <=20.97 PASS 2480 3.73 <=20.97 PASS 3DH1 Ant1 2402 4.65 <=20.97 PASS 2441 4.73 <=20.97 PASS 2480 4.33 <=20.97 PASS Report No.: BLA-EMC-202007-A5101 Page 51 of91 BlueAsia Technology Services(Shenzhen) Limited 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-202007-A5101 Page 52 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 2DH1_Ant1_2402 2DH1_Ant1_2441 2DH1_Ant1_2480 Report No.: BLA-EMC-202007-A5101 Page 53 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 3DH1_Ant1_2402 3DH1_Ant1_2441 3DH1_Ant1_2480 Report No.: BLA-EMC-202007-A5101 Page 54 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 55 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.3 APPENDIX: CARRIER FREQUENCY SEPARATION Test Result TestMode Antenna Channel Result[MHz] Limit[MHz] Verdict DH1 Ant1 Hop 1.008 >=0.732 PASS 2DH1 Ant1 Hop 1 >=0.906 PASS 3DH1 Ant1 Hop 1.33 >=0.888 PASS Report No.: BLA-EMC-202007-A5101 Page 56 of91 BlueAsia Technology Services(Shenzhen) Limited 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-202007-A5101 Page 57 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.4 APPENDIX: TIME OF OCCUPANCY Test Result Frequency Packet Dwell time(ms) Limit(ms) Result 2441MHz DH1/2-DH1/3-DH1 124.80 400 Pass 2441MHz DH3/2-DH3/3-DH3 265.92 400 Pass 2441MHz DH5/2-DH5/3-DH5 310.61 400 Pass The test period: T= 0.4 Second/Channel x 79 Channel = 31.6 s Test channel: 2441MHz as blow DH1/2-DH1/3-DH1 time slot=0.390(ms)*(1600/ (2*79))*31.6=124.80ms DH3/2-DH3/3-DH3 time slot=1.662(ms)*(1600/ (4*79))*31.6=265.92ms DH5/2-DH5/3-DH5 time slot=2.912(ms)*(1600/ (6*79))*31.6=310.61ms Test plot as follows: Report No.: BLA-EMC-202007-A5101 Page 58 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Test Graphs DH1_Ant1 DH3_Ant1_Hop Att 30 dB * * Offset 0.5 dB CLRWR A LVL 3DB RBW 1 MHz VBW 1 MHz SWT 1 ms SGL Ref 20.5 dBm Center 2.441 GHz100 μs/ *1 PK -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -50.23 dBm 344.000000 μs 1 Delta 1 [T1 ] 0.89 dB 390.000000 μs Date: 6.JUL.2020 19:19:02 Att 30 dB * * Offset 0.5 dB CLRWR A LVL 3DB RBW 1 MHz VBW 1 MHz SGL Ref 20.5 dBm Center 2.441 GHz300 μs/ SWT 3 ms *1 PK -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -49.74 dBm 660.000000 μs 1 Delta 1 [T1 ] 0.74 dB 1.662000 ms Date: 6.JUL.2020 19:19:57 Report No.: BLA-EMC-202007-A5101 Page 59 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com DH5_Ant1_Hop Att 30 dB * * Offset 0.5 dB CLRWR A LVL 3DB RBW 1 MHz VBW 1 MHz SGL Ref 20.5 dBm Center 2.441 GHz400 μs/ SWT 4 ms *1 PK -70 -60 -50 -40 -30 -20 -10 0 10 20 1 Marker 1 [T1 ] -51.04 dBm 448.000000 μs 1 Delta 1 [T1 ] 1.95 dB 2.912000 ms Date: 6.JUL.2020 19:20:57 Report No.: BLA-EMC-202007-A5101 Page 60 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.5 APPENDIXF: 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-202007-A5101 Page 61 of91 BlueAsia Technology Services(Shenzhen) Limited 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-202007-A5101 Page 62 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 10.6 APPENDIX:BAND EDGE MEASUREMENTS Test Result TestMode Antenna ChName Channel RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH1 Ant1 Low 2402 1.28 -56.19 <=-18.72 PASS High 2480 1.18 -55.41 <=-18.82 …

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Report No.: BLA-EMC-202007-A5101 Page 77 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com APPENDIX A: PHOTOGRAPHS OF TEST SETUP Antenna Requirement Conducted Emissions at AC Power Line (150kHz-30MHz) Report No.: BLA-EMC-202007-A5101 Page 78 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Radiated Spurious Emissions Report No.: BLA-EMC-202007-A5101 Page 79 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com APPENDIX B: PHOTOGRAPHS OF EUT Report No.: BLA-EMC-202007-A5101 Page 80 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 81 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 82 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 83 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 84 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 85 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 86 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 87 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 88 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 89 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 90 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202007-A5101 Page 91 of91 BlueAsia Technology Services(Shenzhen) Limited Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com ----END OF REPORT---- The test report is effective only with both signature and specialized stamp, The result(s) shown in this report refer only to the sample(s) tested. Without written approval of BlueAsia, this report can’t be reproduced except in full.

Model No.: EP-T31