2AW9K-HW2Wireless TV Headphones

C5266091_X8_Ed.1 1/1 Letter of Authorization HUMBOLDT TECHNOLOGY (HK) LIMITED. Company: HUMBOLDT TECHNOLOGY (HK) LIMITED. Address: ROOM 13 27/F HO KING COMMERCIAL CENTRE 2-16 FA YUEN STREET, MONGKOK, KL, HONGKONG Product Name: Wireless TV Headphones Model Number: HW2 FCC Identifier: 2AW9K-HW2 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: Jianwei Feng Date: 5/8/2021 Title: Manager Signature of applicant:

C5266091_X10_Ed.1 1/1 HUMBOLDT TECHNOLOGY (HK) LIMITED. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 5/8/2021 Subject: Request for Confidentiality FCC ID: 2AW9K-HW2 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 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 Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No 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: Jianwei Feng Date: 5/8/2021 Title: Manager

1 - Page 1 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] APPENDIX 1- EUT PHOTO Photo 1 (For model HW2) Photo 2 1 - Page 2 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 3 Photo 4 1 - Page 3 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 5 Photo 6 1 - Page 4 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 7

Label Size：26*22mm location LETSCOM Name：Wireless TV Headphones Model：HW2 receiver：DC2.4V (2 piles AAA 1.2V） Transmitter：8V 0.4A HUMBOLDT TECHNOLOGY (HK) LIMITED FCC ID：2AW9K-HW2 Made in China Letsfit Name：Wireless TV Headphones Model：HW2 receiver：DC2.4V (2 piles AAA 1.2V） Transmitter：8V 0.4A HUMBOLDT TECHNOLOGY (HK) LIMITED FCC ID：2AW9K-HW2 Made in China ANBES Name：Wireless TV Headphones Model：HW2 receiver：DC2.4V (2 piles AAA 1.2V） Transmitter：8V 0.4A HUMBOLDT TECHNOLOGY (HK) LIMITED FCC ID：2AW9K-HW2 Made in China

1 - Page 5 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 8 PCB antenna 1 - Page 6 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 9 Photo 10 1 - Page 7 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 11 Photo 12 1 - Page 8 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 13 Photo 14 1 - Page 9 of 9 - Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Photo 15 ----END OF REPORT----

Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Test Report Report No.: MTi210326007-03E1 Date of issue: Apr. 25, 2021 Applicant: HUMBOLDT TECHNOLOGY (HK) LIMITED Product name: Wireless TV Headphones Model(s): HW2 FCC ID: 2AW9K-HW2 Shenzhen Microtest Co., Ltd. http://www.mtitest.com - Page 2 of 41 - Report No.: MTi210326007-03E1 Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Te l : (86-755)88850135 Fax: (86-755) 88850136 Web:www.mtitest.com E-mail: [email protected] Table of Contents 1 GENERAL DESCRIPTION ..................................................................................................................................... 4 1.1 FEATURE OF EQUIPMENT UNDER TEST (EUT) ................................................................................................................... 4 1.2 OPERATION CHANNEL LIST ........................................................................................................................................... 4 1.3 TEST FREQUENCY CHANNEL ......................................................................................................................................... 4 1.4 EUT OPERATION MODE .............................................................................................................................................. 4 1.5 ANCILLARY EQUIPMENT LIST ......................................................................................................................................... 4 2 SUMMARY OF TEST RESULT ............................................................................................................................... 5 3 TEST FACILITIES AND ACCREDITATIONS .............................................................................................................. 6 3.1 TEST LABORATORY...................................................................................................................................................... 6 3.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................................... 6 3.3 MEASUREMENT UNCERTAINTY ...................................................................................................................................... 6 3.4 TEST SOFTWARE ........................................................................................................................................................ 6 4 LIST OF TEST EQUIPMENT .................................................................................................................................. 7 5 TEST RESULT ...................................................................................................................................................... 8 5.1 ANTENNA REQUIREMENT ............................................................................................................................................ 8 5.1.1 Standard requirement ................................................................................................................................. 8 5.1.2 EUT Antenna ............................................................................................................................................... 8 5.2 CONDUCTED EMISSION ............................................................................................................................................... 9 5.2.1 Limits ........................................................................................................................................................... 9 5.2.2 Te s t setup .................................................................................................................................................... 9 5.2.3 Te s t procedure ........................................................................................................................................... 10 5.2.4 Te s t results ................................................................................................................................................ 11 5.3 RADIATED SPURIOUS EMISSION ................................................................................................................................... 15 5.3.1 Limit .......................................................................................................................................................... 15 5.3.2 Test method .............................................................................................................................................. 16 5.3.3 Test Result ................................................................................................................................................. 17 5.3.4 Test Result ................................................................................................................................................. 18 5.3.5 Band edge–Field strength of fundamental................................................................................................ 30 5.3.6 Band edge-radiated .................................................................................................................................. 31 5.4 20DB AND 99% BANDWIDTH .................................................................................................................................... 35 5.4.1 Limits ......................................................................................................................................................... 35 5.4.2 Test method ...............................................................................................................…

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Model: HW2 Radiated emission Conducted emission