2AZAPMX1MP3 PALYER

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.

Shenzhen Estron Technology Co.,Ltd Statement Product: MP3 PALYER FCC ID: 2AZAPMX1 Model: Q3E, Q5 Q8, A3 A5, A8, B6 R3, R5, R8 All models are all identical in interior structure, electrical circuits and components, and just model names and color are different for the marketing requirement. Your assistance on this matter is highly appreciated. Yours sincerely, signature : name / title : Ivan Zou/ Manager Contact information / address: F2-020, 2 / F,Building A, No. 29 Huangtian Community Industrial Zone, Hangcheng street, Bao'an District, Shenzhen

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Shenzhen Estron Technology Co.,Ltd Address: F2-020, 2 / F,Building A, No. 29 Huangtian Community Industrial Zone, Hangcheng street, Bao'an District, Shenzhen Product Name: MP3 PALYER Model Number: Q3E, Q5 Q8, A3 A5, A8, B6 R3, R5, R8 FCC Identifier: 2AZAPMX1 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: Ivan Zou Date: 2021.3.16 Title: Manager Signature of applicant: Shenzhen Estron Technology Co.,Ltd

C5266091_X10_Ed.1 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2021-3-16 Subject: Request for Confidentiality FCC ID: 2AZAPMX1 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: Ivan Zou Title: Manager Shenzhen Estron Technology Co.,Ltd

Annex A External Photos Model: Q3E Page 1 of 4 Model: Q3E Page 2 of 4 Model: Q3E Page 3 of 4 Model: Q3E Page 4 of 4

MP3 PALYER Model: Q3E Input: DC5V FCC ID: 2AZAPMX1 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. Shenzhen Estron Technology Co.,Ltd Made in China

Annex B Internal Photo Model: Q3EPage 1 of4 Antenna Model: Q3E Page 2 of4 Model: Q3E Page 3 of4 Model: Q3E Page 4 of4

FCC RF Exposure EUT Description: MP3 PALYER Model No.: Q3E FCC ID: 2AZAPMX1 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]·[√ f(GHz)]≤3.0 fo r 1‐ g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation 2.4G Output power （ dBm） T une Up Po wer （dBm） Max Tune Up power dBm/mW Min test separatio n distance mm Result Limit SAR Test Exclusion BT -1.226 -2±1 -1/0.79 5 0.24686 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2103110655-E, antenna gain=0dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.24686 which is<= 3, RF Exposure testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

Page 1 of 48 Report No.: HK2103110655-E TEST REPORT FCC PART 15 SUBPART C 15.247 Test report On Behalf of Shenzhen Estron Technology Co.,Ltd For MP3 PALYER Model No.: Q3E, Q5, Q8, A3, A5, A8, B6, R3, R5, R8 FCC ID: 2AZAPMX1 Prepared for : Shenzhen Estron Technology Co.,Ltd F2-020, 2 / F,Building A, No. 29 Huangtian Community Industrial Zone, Hangcheng street, Bao'an District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Mar. 08, 2021 ~ Mar. 15, 2021 Date of Report: Mar. 15, 2021 Report Number: HK2103110655-E Page 2 of 48 Report No.: HK2103110655-E TEST RESULT CERTIFICATION Applicant’s name ................. : Shenzhen Estron Technology Co.,Ltd Address ................................. : F2-020, 2 / F,Building A, No. 29 Huangtian Community Industri al Zone, Hangcheng street, Bao'an District, Shenzhen, China Manufacture's Name ............ : Shenzhen Estron Technology Co.,Ltd Address ................................. : F2-020, 2 / F,Building A, No. 29 Huangtian Community Industri al Zone, Hangcheng street, Bao'an District, Shenzhen, China Product description Trade Mark: TIMMKOO Product name ........................... : MP3 PALYER Model and/or type reference : Q3E, Q5, Q8, A3, A5, A8, B6, R3, R5, R8 Standards ............................. : 47 CFR FCC Part 15 Subpart C 15.247 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 ............. : Mar. 08, 2021 ~ Mar. 15, 2021 Date of Issue ........................................... : Mar. 15, 2021 Test Result ............................................... : Pass Prepared by: Project Engineer Reviewed b y: Project Supervisor Approved b y: Jasou Zhou Page 3 of 48 Report No.: HK2103110655-E Table of Contents Page 1. SUMMARY............................................................................................................................................................ 5 1.1. TEST STANDARDS ..................................................................................................................................................... 5 1.2. TEST DESCRIPTION ........................................................................................................................................................ 5 1.3. TEST FACILITY .............................................................................................................................................................. 6 1.4. STATEMENT OF THE MEASUREMENT UNCERTAINTY ............................................................................................................... 6 2. GENERAL INFORMATION ....................................................................................................................................... 7 2.1. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 7 2.2. GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 7 2.3. DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 8 2.4. EQUIPMENTS USED DURING THE TEST .............................................................................................................................. 9 2.5. RELATED SUBMITTAL(S) / GRANT (S) .............................................................................................................................. 10 2.6. MODIFICATIONS ......................................................................................................................................................... 10 2.7. DESCRIPTION OF TEST SETUP ................................................................................................................................ 10 3. TEST CONDITIONS AND RESULTS ......................................................................................................................... 11 3.1. CONDUCTED EMISSIONS TEST ....................................................................................................................................... 11 3.2. RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 14 3.3. MAXIMUM PEAK CONDUCTED OUTPUT POWER ............................................................................................................... 25 3.4. 20DB BANDWIDTH ..................................................................................................................................................... 26 3.5 FREQUENCY SEPARATION ..................................................................................................................................................... 30 3.5. NUMBER OF HOPPING FREQUENCY ................................................................................................................................. 32 3.6. TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 34 3.7. OUT‐OF‐BAND EMISSIONS ........................................................................................................................................... 38 3.8. PSEUDOR…

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