2AQ8H-NDS-8501Portable speaker

Trouble shooting and warning For safety, we do not suggest to charge unit and use microphone together. Control board functions Control board functions TWS-True wireless stereo setup 1. USB/Micro SD/BT control board 2. USB and micro SD memory card input jack 3. Master volume control knob 4. 3.5MM AUX input jack 5. 6.5MM microphone input jack 6. Power switch button 7. Input signal 8. Menu button 9. Charge LED indicator, pls see LED display battery mark flash, after full charge, battery mark will not flash 10. DC 9V charge input jack 11. Increase bass effect button 12. LED mode and switch button 1. Turn on speaker A and select Bluetooth mode by pressing the button (7),screen display [b ] and connect it to your phone. 2. Switch on speaker B and select Bluetooth mode by press the button (7), display screen on [b ] 3. Then press button for 3 seconds screen display will show [ HOS ]. This means that Unit A is start to pair with another unit automatically, and then you could enjoy TWS stereo music. 4. Press button (1) is to remove mobile BT connective memo before, you can connect other device’s BT. MENU Press the [MENU] button (8) to make the following settings: -n is for Microphone Volume, you could adjust volume by knob -E is for microphone echo volume, you could adjust echo volume by knob -Eq is 3 different sound effect, you could change it by Last or Next button WARNING 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 NOTE: 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. Warning: changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment

Model difference declaration letter Differences Description We HANSEN ELECTRONICS CO., LTD.state: Product： Portable speaker Model Name： NDS-8502,NDS-8503,NDS-8504,NDS-8505, NDS-8506,NDS-8507,NDS-8508,NDS-8509, NDS-8510,NDS-8511,NDS-8512,NDS-8513, NDS-8514,NDS-8515,NDS-8516,NDS-8517, NDS-8518,NDS-8519,NDS-8520,NDS-8521, NDS-8522,NDS-8523,NDS-8524,NDS-8525, NDS-8526,NDS-8527,NDS-8528,NDS-8529, NDS-853 The above product with same circuit, PCB layout, electrical parts, materials and wiring structures, Appearance shape, the materials of decorative accessories is same, only different color, Signatory Date: 01-08-2021 Signature : Name:Robbie Zhong Title: Manager Company:HANSEN ELECTRONICS CO., LTD. Address: Caihong Industrial Zone, Shenshan Da Dao West, Guangzhou, Guangdong Province, China

C5266091_X8_Ed.1 1/1 HANSEN ELECTRONICS CO., LTD. Company:HANSEN ELECTRONICS CO., LTD. Address:Caihong Industrial Zone, Shenshan Da Dao West, Guangzhou, Guangdong Province, China Product Name:Portable speaker ModelNumber:NDS-8502,NDS-8503,NDS-8504,NDS-8505,NDS-8506,NDS- 8507,NDS-8508,NDS-8509,NDS-8510,NDS-8511,NDS-8512,NDS-8513,NDS- 8514,NDS-8515,NDS-8516,NDS-8517,NDS-8518,NDS-8519,NDS-8520,NDS- 8521,NDS-8522,NDS-8523,NDS-8524,NDS-8525,NDS-8526,NDS-8527,NDS- 8528,NDS-8529,NDS-8530 FCC Identifier:2AQ8H-NDS-8501 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: Robbie Zhong Date: 08 Jan , 2021 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 HANSEN ELECTRONICS CO., LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 08 Jan, 2021 Subject: Request for Confidentiality FCC ID: 2AQ8H-NDS-8501 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 NOTE 2 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 ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 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. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Robbie Zhong Title: Manager

Page 1 of 3 Report No.:FCS202012038 External photos Photo 1 Photo 2 Page 2 of 3 Report No.:FCS202012038 Photo 3 Photo 4 Page 3 of 3 Report No.:FCS202012038 Photo 5 Photo 6

Label and Label Location FCC ID: 2AQ8H-NDS-8501 L*W: 10mm*5mm White label and black font

Page 1 of 5 Report No.:FCS202012038 Photo 1 Photo 2 Page 2 of 5 Report No.:FCS202012038 Photo 3 Photo 4 Page 3 of 5 Report No.:FCS202012038 Photo 5 Photo 6 Page 4 of 5 Report No.:FCS202012038 Photo 7 Photo 8 Antenna AC6951C Page 5 of 5 Report No.:FCS202012038 Photo 9

FCC Test Report Report No: FCS202012038W01 Issued for Applicant: HANSEN ELECTRONICS CO., LTD. Address: Caihong Industrial Zone, Shenshan Da Dao West, Guangzhou, Guangdong Province, China Product Name: Portable speaker Brand Name: SOUND PRO Model Name: NDS-8501 Series Model: NDS-8502,NDS-8503,NDS-8504,NDS-8505,NDS-8506,N DS-8507,NDS-8508,NDS-8509,NDS-8510,NDS-8511,ND S-8512,NDS-8513,NDS-8514,NDS-8515,NDS-8516,NDS- 8517,NDS-8518,NDS-8519,NDS-8520,NDS-8521,NDS-85 22,NDS-8523,NDS-8524,NDS-8525,NDS-8526,NDS-8527 ,NDS-8528,NDS-8529,NDS-8530 FCC ID: 2AQ8H-NDS-8501 Issued By: Flux Compliance Service Laboratory Add: Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com Page 2 of 32 Report No.: FCS202012038W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com TEST RESULT CERTIFICATION Applicant’s Name ...................: HANSEN ELECTRONICS CO., LTD. Address ..................................: Caihong Industrial Zone, Shenshan Da Dao West, Guangzhou, Guangdong Province, China Manufacture's Name ..............: HANSEN ELECTRONICS CO., LTD. Address ..................................: Caihong Industrial Zone, Shenshan Da Dao West, Guangzhou, Guangdong Province, China Product Description Product Name ........................: Portable speaker Brand Name .........................: SOUND PRO Model Name ...........................: NDS-8501 Series Model ..........................: NDS-8502,NDS-8503,NDS-8504,NDS-8505,NDS-8506,NDS-8507,ND S-8508,NDS-8509,NDS-8510,NDS-8511,NDS-8512,NDS-8513,NDS-8 514,NDS-8515,NDS-8516,NDS-8517,NDS-8518,NDS-8519,NDS-852 0,NDS-8521,NDS-8522,NDS-8523,NDS-8524,NDS-8525,NDS-8526, NDS-8527,NDS-8528,NDS-8529,NDS-8530 Test Standards .......................: FCC Rules and Regulations Part 15 Subpart C, Section 249 Test Procedure .......................: ANSI C63.10:2013 This device described above has been tested FCS, 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 FCS, this document may be altered or revised by FCS, personal only, and shall be noted in the revision of the document.. Date of Test ............................. : Date (s) of performance of tests : Dec.24,2020 ~ Dec.30,2020 Date of Issue ............................ : Dec.30,2020 Test Result ................................ : Pass Tested by : (Scott Shen) Reviewed by : (Duke Qian) Approved by : (Kait Chen) Page 3 of 32 Report No.: FCS202012038W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 6 1.2 MEASUREMENT UNCERTAINTY 6 2. GENERAL INFORMATION 7 2.1 GENERAL DESCRIPTION OF THE EUT 7 2.2 DESCRIPTION OF THE TEST MODES 9 2.3 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 10 2.4 EQUIPMENTS LIST 11 3 CONDUCTED EMISSION MEASUREMENT 12 3.1 LIMIT 12 3.2 TEST PROCEDURE 12 3.3 TEST SETUP 13 3.4 TEST RESULTS 13 4. RADIATED EMISSION MEASUREMENT 16 4.1 LIMIT 16 4.2 TEST PROCEDURE 17 4.3 TEST SETUP 18 4.4 TEST RESULTS 19 5. BAND EDGE TEST 25 5.1 LIMIT 25 5.2 TEST PROCEDURE 25 5.3 TEST SETUP 26 5.4 TEST RESULTS 27 6. 20 DB BANDWIDTH TEST 29 6.1 LIMIT 29 6.2 TEST PROCEDURE 29 6.3 TEST SETUP 29 6.4 TEST RESULTS 30 7. ANTENNA REQUIREMENT 32 7.1 STANDARD REQUIREMENT 32 7.2 EUT ANTENNA 32 Page 4 of 32 Report No.: FCS202012038W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com Revision History Rev. Issue Date Effect Page Contents 00 Dec.30,2020 All Initial Issue Page 5 of 32 Report No.: FCS202012038W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.249 Meas Guidance v05r02 FCC Part 15.249,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.205(a), 15.209(a), 15.249(a), 15.249(c) Radiated Spurious Emission PASS -- 15.209 Field strength of fundamental PASS -- 15.249(d) Band Edge Emission PASS -- 15.215(c) 20dB Bandwidth PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1)” N/A” denotes test is not applicable in this Test Report (2) All tests are according to ANSI C63.10-2013 Page 6 of 32 Report No.: FCS202012038W01 Flux Compliance Service Laboratory Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Tel: 769-27280901 Fax:769-27280901 http://www.fcs-lab.com 1.1 TEST FACTORY Company Name: Flux Compliance Service Laboratory Address: Room 105 Floor Bao hao Technology Building 1 NO.15 Gong ye West Road Hi-Tech Industrial, Song shan lake Dongguan Telephone: +86-769-27280901 Fax: +86-769-27280901 FCC Test Firm Registration Number: 514908 Designation number: CN0127 A2LA accreditation number：5545.01 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 RF output power, conducted ±0.71dB 2 Unwanted Emissions, conducted ±2.988 dB 3 Conducted Emission (9KHz-150KHz) ±4.13 dB 4 Conducted Emission (150KHz-30MHz) ±4.74 dB 5 All emissions,radiate…

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Page 1 of 2 Report No.:FCS202012038 Above 1GHz for radiated emission test setup Blow 1GHz for radiated emission test setup Page 2 of 2 Report No.:FCS202012038 Conducted emission test setup