2AKZ8-TWS027TRUE WIRELESS EARBUDS

FCC ID : 2AKZ8-TWS027

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China E-mail: [email protected] Date: 06/28/2022 We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD hereby declare that： Product Name: TRUE WIRELESS EARBUDS Model No.: TWS027 FCC ID: 2AKZ8-TWS027 For BT Mode: BLE 1M/2M are disable by software For Below are activated: Bluetooth BDR(GFSK) , EDR(π/4‐DQPSK), EDR(8DPSK) Except for the manufacturer, the end user does not have any capability to modify/change the RF parameters. We acknowledge that it is the manufacturer’s responsibility to provide the radio configurations to ensure compliance with Commission’s rules. Sincerely Yours, Signature: Printed Name: Sally Yang Tiltle: Manager Authorization and Evaluation Division FEDERAL COMMUNICATIONS COMMISSIONS 7435 Oakland Mills Road Columbia, MD 21046

Dc 5V voltages AC6969A2 lithium battery Bluetooth antenna 2.4G key indicator light Microph one CRYSTAL 24M 2402-2480MHz

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China E-mail: [email protected] 06/28/2022 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Declaration letter We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD here by declare that we have a product named as TRUE WIRELESS EARBUDS （ 2AKZ8-TWS027; Model No.: TWS027） was tested by Shenzhen Accurate Technology Co., Ltd ,which has left earbud and right earbud. we would like to declare that the product has two units which are electrically identical.We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager FCC ID:

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China E-mail: [email protected] Product Similarity Declaration To Whom It May Concern, We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD hereby declare that we have a product named as TRUE WIRELESS EARBUDS (TWS027,FCC ID: 2AKZ8-TWS027 ) was tested by ATC (Shenzhen), meanwhile, for our marketing purpose, we would like to list a series models (PATW-1014- WH\PATW-1014-PR\PATW-1014-NV\PATW-1014-PK\PATW-1017-PR\PATW-1017-RG\PATW-1017- GN\PATW-1017-SV) on reports and certificate, all the models are electronicindentical, except for the differences appearance color. All models are the same except for color . We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Signature: Printed Name: Sally Yang Title: Manager

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China E-mail: [email protected] FCC ID Cover Letter The DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD here by submits justification for placing the FCC ID in the Associated User Manual. According to th e FCC Regulation and Guidance (KDB Publication 784748 D01 v09r01) allows for the FCC ID to be moved to the User’s manual if the device is unquestionably too small for the FCC ID to be printed. Referring to the above quote, as the device is too small (FCC ID : 2AKZ8-TWS027) to be printed. The FCC ID will be moved to the last page of user’s manual and charging case. The details are as below: A. Side surface (A): The curvature shape of the the plastic back cover is not flat, so it’s hard to affix the label on the surface of the earbuds. B. Top cover (B): The top cover does not provide enough physical space to fit the printing of the FCC ID according to below reference picture. Conclusion： Based on the above description of area A to B, we conclude that the device is unquestionably too small for enabling the FCC ID to be printed onto any surface, We therefore request to move the FCC ID to the User manual and charging case Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager A B

DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China E-mail: [email protected] FCC Authorization 06/28/2022 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO.,LTD the undersigned, hereby authorize Shenzhen Accurate Technology Co., Ltd to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a 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. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Printed Name: Sally Yang Title: Manager QA-FR-170-B

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Project No. : SZ3220616-26835E-RF EXHIBITA-FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the time purchase (Labeling requirements per 2.295)

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This product is a Bluetooth TWS headset, which can input audio signal through Bluetooth connection, including charging management, Bluetooth module and other parts. 1. Charge management :5V DC voltage is charged by +5V,GND solder point, through the main control AC6969A2 3-pin input, internal step-down voltage regulator through AC6969A2 2-pin output 4.2V voltage to charge the lithium battery, lithium battery through AC6969A2 2-pin power supply to the main control AC6969A2 power supply. 2. The Bluetooth module receives and sends rf signals through the 7-pin antenna of the main control AC6969A2, which can be paired with other Bluetooth devices. The audio received by Bluetooth is output to the load speaker through pin 13 and pin 14 (difference) of the main control AC6969A2 to generate sound. 3. The MIC1 microphone receives human voice and transmits it to the mobile phone through Bluetooth through internal processing of the main control. The mobile phone then sends the signal to the other party's mobile phone for playback. 4.LED1 and LED2 indicators are used to display the earphone status 5.Y1,24M crystal oscillator provides fixed oscillation frequency for the main control to maintain the normal operation of the main control

1 1 2 2 3 3 4 4 5 5 6 678 D CC BB AA 12 C3105 VDDIO 1 VBAT 2 LDO_IN/PB5 3 BT_AVDD 4 PB3/ADC6 5 PB1/ADC5 6 BT_RF 7 VSSIO 8 BT_OSCI 9 BT_OSCO 10 ADC14/USBDM 11 PA3/USBDP 12 DACR 13 DACL 14 DACVSS 15 ADC1/MIC/PA1 16 U2 AC6969A2 GND +3.3V 12 C2NC VBAT 1 P1 B+ 1 P2 B- 12 C4NC 12 C6NC LDOIN BT_AVDD LED_B/R GND VBAT 12 34 SW2 KEY GND GND 1 2 L4 6.8NH 12 L3 4.3NH GND 12 L1 NC GND 1 2 34 Y1 24M GNDGND 1 P4 DM 1 P3 DP 1 P5 L 1 P6 R GND + 1 - 2 MIC1 -42db GND 1 2 LED1 BLUE 1 2 LED2 RED GND +3.3V LED_B/R 2402-2480MHZ ±10PPM 12P 1 P7 +5V 1 P8 GND GND LDOIN

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 11: 2021-11-09 Page 1 of 62 FCC-BT TEST REPORT Applicant Name : DONGGUAN LINPA ACOUSTIC TECHNOLOGY CO., LTD Address : 2A, No 60, Lizhong Road, Dali Qingxi Town, Dongguan,523648, China Report Number : SZ3220616-26835E-RF FCC ID: 2AKZ8-TWS027 Test Standard (s) FCC PART 15.247 Sample Description Product Type: TRUE WIRELESS EARBUDS Test Model: TWS027 PATW-1014-WH, PATW-1014-PR, PATW-1014-NV, PATW-1014-PK PATW-1017-PR, PATW-1017-RG, PATW-1017-GN, PATW-1017-SV Trade Mark: N/A Date Received: 2022-06-16 Date of Test: 2022-06-28 to 2022-07-08 Report Date: 2022-07-11 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Audy.Yu Robert Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: SZ3220616-26835E-RF Version 11: 2021-11-09 Page 2 of 62 FCC-BT TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 TEST FACILITY ............................................................................................................................................................. 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 SPECIAL ACCESSORIES ................................................................................................................................................. 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC§15.247 (i), §1.1307 (b) & §2.1093 – RF EXPOSURE ...................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 TEST RESULT: ............................................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER SETUP ....................................................................................................................................... 12 TEST PROCEDURE .....................................................................................................................................................…

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Shenzhen Accurate Technology Co., Ltd. Project No.: SZ3220616-26835E-RF Page 1 of 2 Photo of Power Line Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: SZ3220616-26835E-RF Page 2 of 2 Photo of Radiated Emission Measurement Below 1GHz Photo of Radiated Emission Measurement Above 1GHz