2A9KM-SOLARSPEAKERSolar Speaker

User Version 2.6 27 June, 2022 Page 1 of 21 Table of Contents 目录 GENERAL INFORMATION 基本信息 ............................................................................................................................... 2 1. TERMINOLOGY AND CLARIFICATIONS 术语和说明 ......................................................................................................... 2 2. I/O LAYOUT I/O 列图 ........................................................................................................................................................ 4 3. FIRMWARE FILE NAMING CONVENTION固件文件命名规则 .......................................................................................... 5 FEATURES特色 ......................................................................................................................................................................... 5 4. LOUD SPEAKER (9) 喇叭 ................................................................................................................................................... 5 5. BLUETOOTH (AUDIO)蓝牙（语音） ................................................................................................................................ 5 6. AUXILIARY-IN (AUDIO) (10) 附加语音输入（语音） .................................................................................................... 5 7. SOLAR PANEL (CHARGING) (8) 太阳能板（充电） ........................................................................................................ 6 8. USB TYPE-C (POWER INPUT) (13) TYPE C接口（电源输入） ....................................................................................... 6 9. USB TYPE-A (POWER BANK – OUTPUT) (12) MICRO USB接口（充电宝-输出） ......................................................... 6 10. LED INDICATORS #1 - #5 (15 -19) LED指示灯#1-#5 .................................................................................................. 6 GENERAL FUNCTIONS功能概述........................................................................................................................................... 6 11. POWER BUTTON (2) 电源键 ......................................................................................................................................... 6 12. CHARGE-IN MODE充电输入模式 ` ............................................................................................................................ 7 13. CHARGE-OUT MODE (POWER BANK): 充电输出（充电宝）： ................................................................................. 8 14. VOLUME UP BUTTON (3) 音量加 ................................................................................................................................. 9 15. VOLUME DOWN BUTTON (4) 音量减 ........................................................................................................................... 9 16. USB TYPE-C (POWER INPUT) (12) TYPE C接口（电源输入） ................................................................................ 10 17. USB TYPE-A (POWER BANK – OUTPUT) (11) MICRO USB接口（充电宝——输出） ............................................ 10 18. RESET SWITCH (14) 重置键 ........................................................................................................................................ 10 19. MODE BUTTON (1) + VOLUME UP (3) 模式键+音量加 .............................................................................................. 10 20. MODE BUTTON (1) + VOLUME DOWN (4) 模式键+音量减 ........................................................................................ 10 21. AUTO SHUT OFF: 自动关机 ........................................................................................................................................ 10 22. CHAPTER FORWARD BUTTON (6) + CHAPTER REWIND BUTTON (5) .......................................................................... 11 23. BATTERY电池 ............................................................................................................................................................ 11 AUXILIARY MODE FUNCTIONS AUX模式功能 ............................................................................................................ 12 24. MODE BUTTON (1) 功能键 ......................................................................................................................................... 12 25. POWER BUTTON (2) 电源键 ....................................................................................................................................... 12 26. VOLUME UP BUTTON (3) 音量加 ............................................................................................................................... 12 27. VOLUME DOWN BUTTON (4) 音量减 ......................................................................................................................... 12 28. AUX-IN JACK CABLE AUX线(10) ............................................................................................................................. 12 29. USB TYPE-C (POWER INPUT) (12) TYPE C 接口（电源输入） ................................................................................ 12 30. USB TYPE-A (POWER BANK – OUTPUT) (11) MICRO USB接口（充电宝——输出） ........................................... 12 31. RESET SWITCH (20) 重置键 ........................................................................................................................................ 13 User Version 2.6 27 June, 2022 Page 2 of 21 32. MODE BUTTON (1) + VOLUME UP (3) 模式键+音量加 .............................................................................................. 13 33. MODE BUTTON (1) + VOLUME DOWN (4) 模式键+音量减 ........................................................................................ 13 34. CHAPTER REWIND BUTTON (5) 章节回跳键 .............................................................................................................. 13 35. CHAPTER FORWARD BUTTON (6) 章节快进键 .......................................................................................................... 13 36. PLAY/PAUSE BUTTON (7) 播放/暂停键 .…

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SHENZHEN OLI TIMES ELECTRONICS TECHNOLOGY CO.,LTD Agent Authorization Letter (2022/12/21) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen ZKT Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature : Client’s name / title : Guanxiong Lin / Manager Contact information / address: Room 306, 3rd Floor, East Block (2), Veteran building, 3012 Xingye Road, Bao'an District, Shenzhen,China.

SHENZHEN OLI TIMES ELECTRONICS TECHNOLOGY CO.,LTD Long Term Confidentiality Request Letter (2022-12-21) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR(Solar Speaker / Solar Speaker / FCC ID:2A9KM-SOLARSPEAKER) To Whom It May Concern: - This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature : Client’s name / title : Guanxiong Lin / Manager Contact information / address: Room 306, 3rd Floor, East Block (2), Veteran building, 3012 Xingye Road, Bao'an District, Shenzhen,China.

4cm Model: Solar Speaker FCC ID: 2A9KM-SOLARSPEAKER 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 causeundesired operation. Label Location 2cm

TX ANT

Product specification Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Tot. Rad. Pwr. (dBm) -1.2 (Input pwr – loss pwr) Peak EIRP(dBm) -2 Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 4.2 % Gain (dBi) -0.48 (Peak Gain XZ-plane) Maximum Power (dBm) -1(XY-plane) Minimum Power (dBm) -4(XY-plane) Avg. Power (dBm) -3(XY-plane) Input Impendence(ohm) 50 Polarization Type V ertical & Horizontal V . S .W . R < 1.4 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi @2.44GHz XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board -1.35 -0.48 -1.68 -3.83 -1.11 -2.99 4.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

Project No.:ZKT-221125L8853E Page 1 of 38 FCC TEST REPORT FCC ID:2A9KM-SOLARSPEAKER Report Number. ................................ : ZKT-221125L8853E Date of Test ................................................. : Nov. 23 to Nov. 30, 2022 Date of issue .................................... : Nov. 30, 2022 Total number of pages ...................... 38 Test Result ..................................... : PASS Testing Laboratory. ........................... : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name ............................ : SHENZHEN OLI TIMES ELECTRONICS TECHNOLOGY CO.,LTD Address .......................................... : Room 306, 3rd Floor, East Block (2), Veteran building, 3012 Xingye Road, Bao'an District, Shenzhen,China. Manufacturer's name ..................... : SHENZHEN OLI TIMES ELECTRONICS TECHNOLOGY CO.,LTD Address .......................................... : Room 306, 3rd Floor, East Block (2), Veteran building, 3012 Xingye Road, Bao'an District, Shenzhen,China. Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.249 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method ............. : N/A Test Report Form No. .................... : TRF-EL-111_V0 Test Report Form(s) Originator .... : ZKT Testing Master TRF .................................... : Dated: 2022-11-23 This device described above has been tested by ZKT, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................... : Solar Speaker Trademark ...................................... : MV Model/Type reference ...................... : Solar Speaker Battery ............................................... N/A Ratings ............................................. : DC5V from adapter,AC 120V/60Hz for adapter or DC3.7V from battery Project No.:ZKT-221125L8853E Page 2 of 38 Testing procedure and testing location: Testing Laboratory ..................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Alen He Tested by (name + signature) .................... : Joe Liu Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.:ZKT-221125L8853E Page 3 of 38 Table of Contents Page 1.VERSION 5 2.1SUMMARY OF TEST RESULTS 6 2.1.1 TEST FACILITY 7 2.1.2 MEASUREMENT UNCERTAINTY 7 3. GENERAL INFORMATION 8 3.1 GENERAL DESCRIPTION OF EUT 8 3.2 DESCRIPTION OF TEST MODES 9 3.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 9 3.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 10 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 11 4. EMC EMISSION TEST 12 4.1 CONDUCTED EMISSION MEASUREMENT 12 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS 12 4.1.2 TEST PROCEDURE 12 4.1.3 DEVIATION FROM TEST STANDARD 12 4.1.4 1.3TEST SETUP 12 4.1.5 EUT OPERATING CONDITIONS 13 4.1.6 TEST RESULTS 14 4.2 RADIATED EMISSION MEASUREMENT 16 4.2.1 RADIATED EMISSION LIMITS 16 4.2.2 TEST PROCEDURE 17 4.2.3 1.4DEVIATION FROM TEST STANDARD 17 4.2.4 TEST SETUP 17 4.2.5 EUT OPERATING CONDITIONS 18 5. BANDWIDTH OF FREQUENCY BAND EDGE 29 5.1 TEST REQUIREMENT: 29 5.2 TEST PROCEDURE 29 5.3 DEVIATION FROM TEST STANDARD 29 5.4 TEST SETUP 29 5.5 EUT OPERATING CONDITIONS 30 5.6 TEST RESULT 31 6. CHANNEL BANDWIDTH 33 6.1 APPLIED PROCEDURES / LIMIT 33 6.2 TEST PROCEDURE 33 6.3 DEVIATION FROM STANDARD 33 6.4 TEST SETUP 33 Project No.:ZKT-221125L8853E Page 4 of 38 Table of Contents Page 6.5 EUT OPERATION CONDITIONS 33 6.6 TSET RESULTS 34 8.ANTENNA REQUIREMENT 37 9. TEST SETUP PHOTO 38 10. EUT CONSTRUCTIONAL DETAILS 38 Project No.:ZKT-221125L8853E Page 5 of 38 1.VERSION Report No. Version Description Approved ZKT-221125L8853E Rev.01 Initial issue of report Nov. 30, 2022 Project No.:ZKT-221125L8853E Page 6 of 38 2.1SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgme t Remark FCC part 15.203 Antenna requirement PASS FCC part 15 207 AC Power Line Conducted Emission PASS FCC part 15.249 Fundamental &Radiated Spurious Emission Measurement PASS FCC part 15.215 (c) 20dB Channel Bandwidth PASS FCC part 15.205 Band Edge PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report Project No.:ZKT-221125L8853E Page 7 of 38 2.1.1 TEST FACILITY Shenzhen ZKT Technology Co., Ltd. Add. : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China FCC Test Firm Registration Number: 692225 Designation Number: CN1299 IC Registered No.: 27033 2.1.2 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 Uncertainty 1 Conducted Emission Test ±1.38dB 2 RF power conducted ±0.16dB 3 Spurious emissions conducted ±0.21dB 4 All emissions radiated(<1G) ±4.68dB 5 All emissions radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Project No.:ZKT-221125L8853E Page 8 of 38 3. GENERAL INFORMATION 3.1 GENERAL DESCRIPTION OF EUT Product Name: Solar Speaker Model No.: Solar Speaker Model Different.: N/A Serial No.: N/A Hardware Version: HV1.0 Software Version: SV1.0 Sample(s) Status: Engineer…

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Test Setup Photograph Radiated Emissions Test Setup Below 1G Above 1G Conduction Emissions Test Setup