2AM87-AV83CAR FM TRANSMITTER

To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.

INTRO UNION ELECTRONICC CO., LTD Statement Product Name: CAR FM TRANSMITTER Model No.: AV839, C89S, C88, BTFM1IS, MNCA102 We(INTRO UNION ELECTRONICC CO., LTD ; 6F, F building, East Erea NO.8 ,Shangxue Tech-City, Bantian, Longgang district, Shenzhen, China.) hereby state that all models above are identical in interior structure, electrical circuits and components, and just the model names are different for marking requirement. Signature: Name / title: ANDREW GAO/ Manager Tel: 13544202527 Email: [email protected] Date: 2020-03-02

C5266091_X8_Ed.1 1/1 Letter of Authorization INTRO UNION ELECTRONICC CO., LTD Company: INTRO UNION ELECTRONICC CO., LTD Address: 6F, F building, East Erea NO.8 ,Shangxue Tech-City, Bantian, Longgang district, Shenzhen, China Product Name: CAR FM TRANSMITTER Model Number: AV839, C89S, C88, BTFM1IS, MNCA102 FCC Identifier: 2AM87-AV83 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: ANDREW GAO Date: 3/3/2020 Title: Manager Signature of applicant:

C5266091_X10_Ed.1 1/1 INTRO UNION ELECTRONICC CO., LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 3/3/2020 Subject: Request for Confidentiality FCC ID: 2AM87-AV83 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: CAR FM TRANSMITTER 3/3/2020 Title: Manager

- Page 1 of 3 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China APPENDIX 1: EUT PHOTO Photo 1 (For model AV839) Photo 2 - Page 2 of 3 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 3 Photo 4 - Page 3 of 3 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 5 Photo 6 ----END OF REPORT----

80mm 50mm Model:AV839 Input:DC12V-24V USB1 output:QC3.0 Type-C+USB2 output: 5V 2.4A(MAX) FCC ID: 2AM87-AV83

- Page 1 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China APPENDIX 1: EUT PHOTO Photo 1 (For model AV839) Photo 2 - Page 2 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 3 Photo 4 - Page 3 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 5 Photo 6 - Page 4 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 7 Photo 8 - Page 5 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 9 Photo 10 PCB Antenna FM ANT - Page 6 of 6 - Report No.: MTi19123009-3E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Photo 11 Photo 12 ----END OF REPORT----

This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen Microtest Co., Ltd. Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Test Report FCC ID: 2AM87-AV83 Date of issue: Mar. 02, 2020 Report number: MTi19123009-3E2 Sample description: CAR FM TRANSMITTER Mo d e l( s ) : AV839, C89S, C88, BTFM1IS, MNCA102 Applicant: INTRO UNION ELECTRONICS CO, LIMITED Address: 6F, F BUILDING, EAST AREA NO.8, SHANGXUE TECH-CITY, BANTIAN, LONGGANG, SHENZHEN, China Date of test: Jan. 02, 2020 – Feb. 28, 2020 Shenzhen Microtest Co., Ltd. http://www.mtitest.com - Page 2 of 20 - Report No.: MTi19123009-3E2 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: No.102A & 302A, East Block, Hengfang Industrial Park, Xingye Road, Xixiang, Bao'an District, Shenzhen, Guangdong, China Table of Contents 1 GENERAL DESCRIPTION ..................................................................................................................................... 4 1.1 DESCRIPTIONS OF EUT ............................................................................................................................................... 4 1.2 CHANNELS ARE PROVIDED TO FM ................................................................................................................................. 5 CHANNEL LIST .................................................................................................................................................................. 5 1.3 FREQUENCY CHANNEL UNDER TEST .............................................................................................................................. 5 1.4 ANCILLARY EQUIPMENT LIST ......................................................................................................................................... 5 1.5 DESCRIPTION OF SUPPORT UNITS ................................................................................................................................. 5 2 SUMMARY OF TEST RESULTS ............................................................................................................................. 6 3 TEST FACILITIES AND ACCREDITATIONS .............................................................................................................. 7 3.1 TEST LABORATORY...................................................................................................................................................... 7 3.2 ENVIRONMENTAL CONDITIONS ..................................................................................................................................... 7 3.3 MEASUREMENT UNCERTAINTY ...................................................................................................................................... 7 3.4 TEST SOFTWARE ........................................................................................................................................................ 7 4 EQUIPMENT LIST ............................................................................................................................................... 8 5 TEST RESULT ...................................................................................................................................................... 9 5.1 ANTENNA REQUIREMENT ............................................................................................................................................ 9 5.1.1 Standard requirement ................................................................................................................................. 9 5.1.2 EUT antenna description ............................................................................................................................. 9 5.2 AC POWER LINE CONDUCTED EMISSION ....................................................................................................................... 10 5.2.1 Limit .......................................................................................................................................................... 10 5.2.2 Test method .............................................................................................................................................. 10 5.2.3 Test Result ................................................................................................................................................. 10 5.3 FIELD STRENGTH OF FUNDAMENTAL AND HARMONIC EMISSIONS ....................................................................................... 11 5.3.1 Limits ......................................................................................................................................................... 11 5.3.2 Test Method .............................................................................................................................................. 11 5.3.3 Test Result ................................................................................................................................................. 12 5.4 OPERATING FREQUENCY& OCCUPIED BANDWIDTH ......................................................................................................... 13 5.4.1 Limits ......................................................................................................................................................... 13 5.4.2 Test method .............................................................................................................................................. 13 5.4.3 Test result .............................................................................................................................................…

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Model: AV839 Radiated emission