2AR23-T5True wirelss stereo earbuds

1 / 4 T5 TWS Specifications and User Manual 20200305 Earphone Basic Specifications ■Size: single-earphone 23.4x18.5x21mm ■Weight:6.3g (Only one earphone) ■Earphone Charging Port:magnetic type ■Button: 1 (MFB ) ■Charge indicator:Blink blue light (Charging) / light off (Charging completed) ■Battery :Li-polymer Battery 80mAh 3.7V/0.296Wh(One earphone) ■Earphone Charging Current: 120mA ■Earphone Charging time: 2 hours ■Working Voltage: 3.3V~4.2V ■Standby time: about 80 hours ■Battery and Power ■Earphone(single charge): Music Time: 5.5~6 hours Talking Time: 6 hours ■Earphone with Charging case: Music Time:55-66 hours Talking Time:66 hours ※ Working time of main earphone in the state of two earphones:＜5 Hours ■Bluetooth version: Bluetooth 5.1 ■Bluetooth chip: JL AC6936D ■Support Profile: HSP, HFP, A2DP, AVRCP ■The remote control to earphones: MFB (Play/Pause/Stop, Volume+/Volume-, Next song, Previous song) ■Paring name: T5 FCC ID: 2AR23-T5 2 / 4 ■ Pass: 0000 ■ RF transmit: class 2 ■ RF input impedance: 50ohm ■RF Emissive Power: 9 dBm ■ Receive sensitivity: -89dBm ■ Transmission Range (Hz): 2.40GHz ~ 2.48GHz ■ Transmission distance: 10m ■ TWS function: after two earphones pair and connect, they can work as true wireless stereo earphone ■ Audio sampling accuracy: 16bits ■ Audio sampling rate: Up to 96 kHz ■ Audio encoding format: CVSD、mSBC、SBC、ACC ■ SNR: >95dB ■ Working temperature: -15°C～+60°C ■ Working humidity: 10%~85%( in a non-frozen state) ■ waterproof level ：IPX5 Speaker ■ Speaker specifications / mode: Φ9mm ■ Impedance: 16Ω/ typ ■ Frequency(Hz): 20Hz～20KHz ■ Sensitivity: 93±3dB ■ Input Power: 3 mW ( normal), 5mW ( maximum) MIC ■ MIC type: silicon MIC ■ MIC sensitivity: -42±3dB ■ SPL：130dB Basic Specifications of Charging box ■ Size:76.2x42.9x23mm ■ Weight:72g ■ Charging Port: Micro USB ■ Charging LED indicator/charging completed indicator: Blink blue/Steady blue light. ■ Battery:Li-polymer Battery 400mAh 3.7V/1.48Wh ■ Input Voltage :DC5V ■ Charging current:3000mA ■ Output Voltage:DC5V ■ Discharge current:120mA ■ Working temperature: -15°C～+60°C ■ Working humidity: 10%~85%( in a non-frozen state) Operating Instructions Bluetooth pairing 3 / 4 1. Take out both earphones from the charging case,they interconnected within 10 seconds,you can hear a “click” if wearing; with “Pairing” prompt tone, afterward to enter pairing mode; 2. Activate Bluetooth connection on your device and select T5, with “Connected” after successfully connected; Music and calls Left earphone (L) Right earphone (R) Play/Pause X1 X1 Previous Song X2 Next Song X2 Volume + Touch and hold Volume - Touch and hold Answer/End a call X1 X1 Reject call Touch and hold for 3 seconds Voice assistant X3 *All the above function are for touch operations. *Right earphone is master. For MONO: Right earphone as mono: Charging Charging the earphones Place the earphones in the charging case,they will automatically shut down and start charging,indicated by a flashing blue light.Light turn off when it is completely charged. Earphone status lights *Your earphones let you know your battery level is low.Every 20 seconds you will hear “Battery Low”when there is 5 minutes of battery level. Charging the case Connect an adapter with 5V output voltage (compatible) with a Micro USB cable. Charging Flashing blue light Full charge Light off Pairing Blink blue light 4 / 4 Case status lights Notes: It will turn off automatically after 5 minutes if without any connection with mobile phone when it turns on. Pairing time: 3 minutes. It will quit the pairing mode automatically after 3 minutes if without any connection with mobile phone when it is in the state of pairing. In addition, display battery state on Apple devices. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Charging Flashing blue light Full charge Steady blue light

Shenzhen Mees Hi-Tech Co., Ltd [2020-05-26] Federal Communications Commission 445 12 th Street SW Washington, DC 20554 Subject: Limited Agency Agreement SHENZHEN MEES HI-TECH CO., LTD FCC ID: 2AR23-T5 To Whom It May Concern: We, SHENZHEN MEES HI-TECH CO., LTD hereby authorized Intertek Testing Services to act as our Agent for the purpose of preparing application for FCC ID number (2AR23-T5) under all applicable parts of the FCC rules and regulations. The effective date of this limited agency agreement is (2020-05-26). The Limited Agency Agreement expires until further notice, unless sooner terminated or extended by written notice to Intertek Testing Services and the Federal Communications Commission. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. The applicant is not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 U.S.C. 862, and no party to the application is subject to a denial of federal benefits pursuant to that section. If you have any questions or comments, please do not hesitate to contact me. Sincerely, [Signature] SHENZHEN MEES HI-TECH CO., LTD Contact person: Jecci Liu

Shenzhen Mees Hi-Tech Co., Ltd May 26, 2020 Federal Communication Commission Authorization and Evaluation Division FCC ID: 2AR23-T5 Re: Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the applicant hereby requests confidential treatment of information applied this application as outlined below: 1: Block Diagram 2: Schematics 3: Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rules 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, SHENZHEN MEES HI-TECH CO., LTD Contact person: Jecci Liu

External Photos WHOLE VIEW OF EUT TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT

FCC ID Label Location Size: 30mm*10mm FCC ID: 2AR23-T5

Internal Photos Left VIEW OF EUT(Port) OPEN VIEW OF EUT BT Antenna VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 Right VIEW OF EUT(Port) OPEN VIEW OF EUT BT Antenna VIEW OF BATTERY INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description True wirelss stereo earbuds Model Name T5 FCC ID 2AR23-T5 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v05 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 3. CALCULATION P t =-3.873dBm=0.41mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.41mW /5mm) .[√2.441GHz)]=0.13<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 62 FCC Test Report Report No.: AGC07822200501FE03 FCC ID : 2AR23-T5 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : True wirelss stereo earbuds BRAND NAME : MEES MODEL NAME : T5, A1, A2, A2S, A3, A8, F1, F2, F3, F4, F5, F6, F7, P1, S2, S3, T1S, T2, T3, T6, T6S, T7, T8, T9 APPLICANT : Shenzhen Mees Hi-Tech Co., Ltd DATE OF ISSUE : May 26, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd CAUTION: This report shall not be reproduced except in full without the written permission of the test laboratory and shall not be quoted out of context. Report No.: AGC07822200501FE03 Page 2 of 62 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / May 26, 2020 Valid Initial Release Report No.: AGC07822200501FE03 Page 3 of 62 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY ............................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................ 6 2.1. PRODUCT DESCRIPTION ..................................................................................................................... 6 2.2. TABLE OF CARRIER FREQUENCYS ..................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH ............................................................................................................ 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ....................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ........................................................ 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................. 8 2.7. TEST METHODOLOGY .......................................................................................................................... 8 2.8. SPECIAL ACCESSORIES ....................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS .............................................................................................................. 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................. 9 4. DESCRIPTION OF TEST MODES ............................................................................................................... 10 5. SYSTEM TEST CONFIGURATION .............................................................................................................. 11 5.1. CONFIGURATION OF EUT SYSTEM .................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM ............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS ............................................................................................................. 11 6. TEST FACILITY ........................................................................................................................................... 12 7. PEAK OUTPUT POWER ............................................................................................................................. 13 7.1. MEASUREMENT PROCEDURE ........................................................................................................... 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 14 8. 20DB BANDWIDTH ..................................................................................................................................... 18 8.1. MEASUREMENT PROCEDURE ........................................................................................................... 18 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 18 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................. 18 9. CONDUCTED SPURIOUS EMISSION ........................................................................................................ 23 9.1. MEASUREMENT PROCEDURE ........................................................................................................... 23 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 23 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 23 9.4. LIMITS AND MEASUREMENT RESULT ............................................................................................... 23 Report No.: AGC07822200501FE03 Page 4 of 62 10. RADIATED EMISSION ............................................................................................................................... 31 10.1. MEASUREMENT PROCEDURE ......................................................................................................... 31 10.2. TEST SETUP ....................................................................................................................................... 33 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................. 34 10.4. TEST RESULT ..................................................................................................................................... 34 11. NUMBER OF HOPPING FREQUENCY ...............................................…

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Report No.: AGC07822200501FE03 Page 50 of 62 14. FCC LINE CONDUCTED EMISSION TEST 14.1. LIMITS OF LINE CONDUCTED EMISSION TEST Frequency Maximum RF Line Voltage Q.P.( dBuV) Average( dBuV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. 14.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST EUT & Support Units Report No.: AGC07822200501FE03 Page 51 of 62 14.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane. 2. Support equipment, if needed, was placed as per ANSI C63.10. 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4. All support equipments received AC120V/60Hz power from a LISN, if any. 5. The EUT received DC charging voltage by adapter which received AC120V/60Hz power by a LISN. 6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation. 9. The test mode(s) were scanned during the preliminary test. Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing. 14.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test. 2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the applicable limit. If EUT emission level was less –2dB to the A.V. limit in Peak mode, then the emission signal was re-checked using Q.P and Average detector. 3. The test data of the worst case condition(s) was reported on the Summary Data page. 14.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST N/A Note:The BT function of EUT didn’t work when charging. Report No.: AGC07822200501FE03 Page 52 of 62 APPENDIX A: PHOTOGRAPHS OF TEST SETUP RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ Report No.: AGC07822200501FE03 Page 53 of 62 CONDUCTED TEST SETUP Report No.: AGC07822200501FE03 Page 54 of 62 APPENDIX B: PHOTOGRAPHS OF EUT WHOLE VIEW OF EUT TOP VIEW OF EUT Report No.: AGC07822200501FE03 Page 55 of 62 BOTTOM VIEW OF EUT FRONT VIEW OF EUT Report No.: AGC07822200501FE03 Page 56 of 62 BACK VIEW OF EUT LEFT VIEW OF EUT Report No.: AGC07822200501FE03 Page 57 of 62 RIGHT VIEW OF EUT Left VIEW OF EUT(Port) Report No.: AGC07822200501FE03 Page 58 of 62 OPEN VIEW OF EUT VIEW OF BATTERY BT Antenna Report No.: AGC07822200501FE03 Page 59 of 62 INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 Report No.: AGC07822200501FE03 Page 60 of 62 Right VIEW OF EUT(Port) OPEN VIEW OF EUT BT Antenna Report No.: AGC07822200501FE03 Page 61 of 62 VIEW OF BATTERY INTERNAL VIEW OF EUT-1 Report No.: AGC07822200501FE03 Page 62 of 62 INTERNAL VIEW OF EUT-2 ----END OF REPORT----

Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ CONDUCTED TEST SETUP