2AO47K023Tws Earbuds

TW S EA User Quick R PH O N E Light Touch Button HOW TO POWER ON AND PAIR THE EARPHONES Guide Light Transmission distance: 10M Earphone battery: 40mAh Charge box capacity: 400mAh Work time: 3-4hour Charging time: 1-2hour Charging case voltage: 5V 1. Charge with the charging dock, The white light flashing. 2. The earphone is charging and pow ers off, The red light. CHARGING STATE 1. When the earphones are removed from the charging case, they will automatically turn on and pair to each other automati cally. 2. Bluetooth pairing name: k023 3. When using the earphones later, it will automatically connect to the phone. 4. Earphones will automatically turn off if there is not connected to phone after 5 minutes. PRODUCT PARAMETERS Power on HOW TO USE (TOUCH BUTTON) Power off Long press the touch 2s Long press the touch 3s Play/Pause One click Long press the touch 1s SIRI Answer the call One click Refuse the incoming call Long press the touch 1s Hang up the call One clickCancel the dial Power on Power off Long press the touch 2s Long press the touch 3s Play/Pause One click Touch Button(Right Earphone) Touch Button(Left Earphone) Volume - Previous songDouble clicks Three clicks One click Answer the call One click Refuse the incoming call Long press the touch 1s One clickCancel the dial Volume + Next song Hang up the callDouble click Three clicks Double clicks W

Shenzhen Kingstar Industrial Co., Ltd. ADD: Room 211, Min Le Technology Building, Meiban Road, LongHua District, Shenzhen, China Tel: +86-13632717270 Email: [email protected] Date: 2020/10/13 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: The RF chip, model AC6936D, which installed in our product TWS Earbuds, Model: K023, FCC ID:2AO47K023, supports BDR (GFSK), EDR (π/4-DQPSK, 8DPSK), BLE 1M and BLE 2M functions. For use in America and this chip will not support/enable EDR (8DPSK) and BLE 2M function. The EDR (8DPSK) and BLE 2M function has been shielded by the manufacturer using the software. Sincerely Yours, Signature: Printed Name: Gang Liu Title: General Manager

Shenzhen Kingstar Industrial Co., Ltd. ADD: Room 211, Min Le Technology Building, Meiban Road, LongHua District, Shenzhen, China Te l : +86-13632717270 Email: [email protected] Declaration Date: 2020/10/13 To whom it may concern: Our product, Tws Earbuds ,Model number: K023, FCC ID: 2AO47K023 is a twins earphone that has a left earphone and a right earphone. We would like to declare that the left earphone and the right earphone are identical in the Antenna & RF circuits. So only choose the one of two earphones to test. Sincerely, Signature: Printed Name: Gang Liu Title: General Manager

Shenzhen Kingstar Industrial Co., Ltd. Address: Room 211, Min Le technology Building Meiban Road, LongHua District Shenzhen, China Tel: +86-13632717270; Fax: N/A Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2020-10-13 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Shenzhen Kingstar Industrial Co., Ltd., the undersigned, hereby authorizes Bay Area Compliance Laboratories Corporation 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 Bay Area Compliance Laboratories Corporation 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: GANG LIU GENERAL MANAGER

Shenzhen Kingstar Industrial Co., Ltd. Address: Room 211, Min Le technology Building Meiban Road, LongHua District Shenzhen, China Tel: +86-13632717270; Fax: N/A Email: [email protected] FCC Confidential Authorization Date: 2020-10-13 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AO47K023 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Kingstar Industrial Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: GANG LIU GENERAL MANAGER

Shenzhen Kingstar Industrial Co., Ltd. ADD: Room 211, Min Le Technology Building, Meiban Road, LongHua District, Shenzhen, China Te l : +86-13632717270 Email: [email protected] FCC certification No. Cover Letter We, Shenzhen Kingstar Industrial Co., Ltd., hereby submit justification for placing the FCC certification No. in the associated user’s manual and charging case. According to the FCC regulation, the FCC certification No. should be printed on the earbuds, but as the earbuds are too small to print the label (FCC ID: 2AO47K023) , it will be moved to the user manual and charging case. The details are as below: A. Side surface (A): The side surface does not provide enough physical space to fit the printing of the FCC certification No. according to below reference picture. B. Top cover (B): The top cover does not provide enough physical space to fit the printing of the FCC certification No. 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 certification No. to be printed onto any surface. We therefore request to move the FCC certification No. to the user’s manual and charging case. Best regards, Signature: Printed name: Gang Liu Title: General Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 1 of 11 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS Charging box Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 2 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 3 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 4 of 11 Charging box& earphone Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 5 of 11 Left earphone Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 6 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 7 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 8 of 11 Right earphone Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 9 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 10 of 11 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 11 of 11 USB Cable

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF EXHIBIT A - 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 user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 1 of 9 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS Charging box Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 2 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 3 of 9 Left earphone Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 4 of 9 Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 5 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 6 of 9 Right earphone Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 7 of 9 Antenna Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 8 of 9 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: RSZ200722002-RF Page 9 of 9

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. BACL 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. FCC PART 15.247 TEST REPORT For Shenzhen Kingstar Industrial Co., Ltd. Room 211, Min Le technology Building Meiban Road, LongHua District, Shenzhen, China FCC ID: 2AO47K023 Report Type: Original Report Product Type: Tws Earbuds Re port Number: RSZ200722002-00A Re port Date: 2020-09-12 Reviewed B y: Jacob Kong RF Engineer Prepared By: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F., West Wing, Third Phase of Wanli Industrial Building, Shihua Road, Futian Free Trade Zone, Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200722002-00A FCC Part 15.247 Page 2 of 47 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 EXTERNAL I/O CABLE .................................................................................................................................................. 6 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 8 TEST EQUIPMENT LIST ........................................................................................................................................... 9 FCC§15.247 (i), §1.1307 (b) (1) &§2.1093 – RF EXPOSURE ...................................................................................... 10 APPLICABLE STANDARD ............................................................................................................................................ 10 FCC §15.203 – ANTENNA REQUIREMENT .......................................................................................................... 11 APPLICABLE STANDARD ............................................................................................................................................ 11 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 11 FCC §15.205, §15.209 & §15.247(d) – RADIATED EMISSIONS ........................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 EUT SETUP ................................................................................................................................................................ 12 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP .............................................................................................. 13 TEST PROCEDURE ...................................................................................................................................................... 13 CORRECTED AMPLITUDE & MARGIN CALCULATION ................................................................................................. 13 TEST DATA ................................................................................................................................................................ 13 FCC §15.247(a) (1)-CHANNEL SEPARATION TEST ........................................................................................... 20 APPLI…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ200722002-RF EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emissions View (Below 1 GHz) Radiated Emissions View (Above 1 GHz)