2AX3Y-RFSOUND01FM transmitter

Chengdu YiLe Electronic Technology Company Ltd. Agent Authorization Company: Chengdu YiLe Electronic Technology Company Ltd. Address: Room 11 1F Unit 1, Block 4，No. 1, Beidong Street, Qing Yang District, Chengdu, China Product Name: FM transmitter Model Number(s): CD01, 15S We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Date: Nov. 04, 2020 Signature: Name: Yang Jun Title: manager Company: Chengdu YiLe Electronic Technology Company Ltd.

Chengdu YiLe Electronic Technology Company Ltd. Date: Nov. 04, 2020 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AX3Y-RFSOUND01 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Yang Jun Title: manager

Chengdu YiLe Electronic Technology Company Ltd. Model Confirmation Letter We, Chengdu YiLe Electronic Technology Company Ltd. , certify the product: FM transmitter , Model No.: CD01, 15S All model’s the function, software and electric circuit are the same, only product model named different. Signiture: Grantee Contact:Yang Jun Company Name: Chengdu YiLe Electronic Technology Company Ltd. Date: Nov. 04, 2020

ANTENNA

SIEZ: 30*60mm FM transmitter MODEL: CD01 FCC ID: 2AX3Y-RFSOUND01 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.

Page 1 of 24 Report No.: HK2010213016-E FCC TEST REPORT Test report On Behalf of Chengdu YiLe Electronic Technology Company Ltd. For FM transmitter Model No.: CD01, 15S FCC ID: 2AX3Y-RFSOUND01 Pre pared for : Che ngdu YiLe Ele ctronic Te chnology Company Ltd. Room 11 1F Unit 1, Block 4，No. 1, Be idong Street, Qing Yang District, Che ngdu, China Pre pared By : She nzhe n HUAK Te sting Te chnology Co., Ltd. 1F, B2 Building, Junfe ng Zhongcheng Zhizao Innovation Park, Fuhai Stre e t, Bao'an District, She nzhen City, China Date of Te st: Oct. 14, 2020 -- Oct. 27, 2020 Date of Re port: Oct. 27, 2020 Re port Number: HK2010213016-E Page 2 of 24 Report No.: HK2010213016-E TEST RESULT CERTIFICATION Applicant’s name ..................: Chengdu YiLe Electronic Technology Company Ltd. Address ...................................: Room 11 1F Unit 1, Block 4，No. 1, Beidong Street, Qing Yang District, Chengdu, China Manufacture's Name .............: Chengdu YiLe Electronic Technology Company Ltd. Address ...................................: Room 11 1F Unit 1, Block 4，No. 1, Beidong Street, Qing Yang District, Chengdu, China Product description Trade Mark ..............................: rfsound / 雨林声 / joysound / 欣宜乐 Product name ..........................: FM transmitter Model and/or type reference .: CD01, 15S Standards ...............................: FCC Part 15 Subpart C Section 15.239 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test........................................... : Date (s) of performance of tests............. : Oct. 14, 2020 -- Oct. 27, 2020 Date of Issue .......................................... : Oct. 27, 2020 Test Result.............................................. : Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Page 3 of 24 Report No.: HK2010213016-E TABLE OF CONTENTS 1 TEST SUMM ARY............................................................................................................................ 4 1.1 TEST PROCEDURES AND RESULTS.......................................................................................... 4 1.2 TEST FACILITY ............................................................................................................................ 4 1.3 Measurement Uncertainty.............................................................................................................. 4 2 GENERAL INFORM ATION ............................................................................................................. 5 2.1 GENERAL DESCRIPT ION OF EUT .............................................................................................. 5 2.2 Carrier Frequency of Channels ...................................................................................................... 5 2.3 Operation of EUT during testing..................................................................................................... 5 2.4 DESCRIPTION OF TEST SETUP ................................................................................................. 6 2.5 Description of Support Units .......................................................................................................... 6 3 TEST RESULTS AND M EASUREM ENT DATA.............................................................................. 8 3.1 CONDUCTED EMISSIONS TEST ................................................................................................. 8 3.2 RADIATED EMISSION TEST ...................................................................................................... 11 3.5 OCCUPIED BANDWIDT H MEASUREMENT ............................................................................... 19 3.5 Antenna Requirement.................................................................................................................. 21 4 PHOTOGRAPH OF TEST ............................................................................................................. 22 5 PHOTOGRAPH OF EUT............................................................................................................... 24 Page 4 of 24 Report No.: HK2010213016-E 1 TEST SUMMARY 1.1 TEST PROCEDURES AND RESULTS Re quirement CFR 47 Se ction Re sult Conducted Emission part 15.207 PASS Field Strength of Fundamental part 15.239(b) PASS Occupied Bandwidth Emission part 15.239(a) PASS Spurious Emission part 15.209/15.239(c) PASS Antenna Requirement Part 15.203 PASS Note: 1. PASS: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test ob ject. 4. The test result judgment is decided by the limit of test standard. 1.2 TEST FACILITY Test Firm : Shenzhen HUAK Testing Technology Co., Ltd. Address 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China 1.3 Measurement Uncertainty The reported uncertainty of measurement y ± U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item MU 1 Conducted Emission ±2.56dB 2 RF power, conducted ±0.12dB 3 Spurious emissions, conducted ±0.11dB 4 All emissions, radiated(<1G) ±3.92dB 5 All emissions, radiated(>1G) ±4.28dB 6 Temperature ±0.1°C 7 Humidity ±1.0% Page 5 of 24 Report No.: HK2010213016-E 2 GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment FM transmitter Model Name CD01 Serial No. 15S Trade Mark rfsound / 雨林声 / joysound / 欣宜乐 FCC ID 2AX3Y-RFSOUND01 Hardware Version: V1.5 Software Version: V1.1 Ope…

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30MHz-1000MHz Above 1000MHz Conducted Emission