2AYSY-Q8Bluetooth headphone

FCC Statement 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. This device complies with FCC PART15 Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) this device mustaccept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Zhongtiandingsheng Shenzhen Industrial Co., Ltd Model Difference Product Name: Bluetooth headphone Model Number: Q8, Q8S, Q8X, Q8 Max, Q8 Pro FCC Identifier: 2AYSY-Q8 All the models are the same circuit and RF module, except the model names and outlook color. Regards Sincerely Client’s signature Client’s name / title : Yao Yichun / Manager Contact information / address: Room 1920, South China Development Center, No.1 Huanan Avenue,Pinghu Street,Longgang District, Shenzhen Guangdong Province, China

Zhongtiandingsheng Shenzhen Industrial Co., Ltd 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-01-30 Subject: Request for Confidentiality FCC ID: 2AYSY-Q8 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yao Yichun Title: Manager

Zhongtiandingsheng Shenzhen Industrial Co., Ltd 1/1 Letter of Authorization Company: Zhongtiandingsheng Shenzhen Industrial Co., Ltd Address: Room 1920, South China Development Center, No.1 Huanan Avenue,Pinghu Street,Longgang District, Shenzhen Guangdong Province, China Product Name: Bluetooth headphone Model Number: Q8, Q8S, Q8X, Q8 Max, Q8 Pro FCC Identifier: 2AYSY-Q8 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Yao Yichun Date: 2021-01-30 Title: Manager Signature of applicant:

Size:15*10mm M/N: Q8 FCC ID: 2AYSY-Q8 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. Label location

Antenna location Model: Q8

Global United Technology Services Co., Ltd. Report No.: GTSL202101000209F01 Authorized Signature: Robinson Lo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 37 + TEST REPORT Applicant: Zhongtiandingsheng Shenzhen Industrial Co., Ltd Address of Applicant: Room 1920, South China Development Center, No.1 Huanan Avenue,Pinghu Street,Longgang District, Shenzhen Guangdong Province, China Manufacturer: GuangDong Kotion Electroacoustic Technology Co.，Ltd Address of Manufacturer: Room 101, Building 1, NO18, 2nd Road Sanjiang Industrial Areas, HengLi Town, DongGuan City, GuangDong Province, China Equipment Under Test (EUT) Product Name: Bluetooth headphone Model No.: Q8, Q8S, Q8X, Q8 Max, Q8 Pro Trade Mark: N/A FCC ID: 2AYSY-Q8 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.249 Date of sample receipt: Jan. 25, 2021 Date of Test: Jan. 25, 2021 - Jan. 30, 2021 Date of report issued: Jan. 30, 2021 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTSL202101000209F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 37 2 Version Version No. Date Description 00 Jan. 30, 2021 Original Prepared By: Date: Jan. 30, 2021 Project Engineer Check By: Date: Jan. 30, 2021 Reviewer Report No.: GTSL202101000209F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 37 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................ 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................. 7 5.6 TEST FACILITY ................................................................................................................................... 8 5.7 TEST LOCATION ................................................................................................................................. 8 5.8 ADDITIONAL INSTRUCTIONS ................................................................................................................ 8 6 TEST INSTRUMENTS LIST ..................................................................................................................... 9 7 TEST RESULTS AND MEASUREMENT DATA .................................................................................... 11 7.1 ANTENNA REQUIREMENT ................................................................................................................... 11 7.2 CONDUCTED EMISSIONS ................................................................................................................... 12 7.3 RADIATED EMISSION METHOD ........................................................................................................... 15 7.3.1 Field Strength of The Fundamental Signal ................................................................................ 17 7.3.2 Spurious emissions .................................................................................................................... 19 7.3.3 Bandedge emissions .................................................................................................................. 30 7.4 20DB OCCUPY BANDWIDTH .............................................................................................................. 31 8 TEST SETUP PHOTO ............................................................................................................................ 34 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 36 Report No.: GTSL202101000209F01 Global United Technology Services Co., Ltd. No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 37 4 Test Summary Test Item Section in CFR 47 Result Antenna requirement …

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Measurement Photos Model: Q8