FCC ID: 2AQ8H-NDS-8501 Portable 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. 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 devices 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 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 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

C5266091_X10_Ed.2 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 ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality Short-Term Confidentiality NOTE 2 No No No No No No No NOTE 1 NOTE 1 No No No No No 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. 1/1 C5266091_X10_Ed.2 Sincerely, Signature:

Name: Robbie Zhong Title: Manager 1/1

Model difference declaration letter Differences Description We HANSEN ELECTRONICS CO., LTD.state:

Product Portable speaker 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, Model Name 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 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 Title: Manager Date: 08 Jan , 2021 Signature of applicant:

1/1