FCC ID: 2A9QS-S301 Home Theater Sound Bar System With HDMi (Arc)

Comlpiance Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Attention: 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. FCC Comlpiance: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. 18

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Home Theater Sound Bar System With HDMi (Arc) Power Source: AC 110~220V-50/60Hz FCC ID : 2A9QS-

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Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD21046 Subject; Request for Long Term Confidentiality FCC ID: 2A9QS-S301 To Whom It May Concern, Date: Jan. 07, 2023 Pursuant to the provisions of the Commissions 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 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: Kai Lv Name:

Title: Manager

Zhejiang Hengdian Imp & Exp. Co., Ltd Letter of Authorization Company: Zhejiang Hengdian Imp & Exp. Co., Ltd Address: 17/F, T1, Hengdian Center, No.136 Fuchun Road, Shangcheng District, Hangzhou, China Product name: Home Theater Sound Bar System With HDMi (Arc) Trade name: Trefan Model name: TF-S301, TF-S302, TF-S303, TF-S304, TF-S305, TF-S306, TF-S307, TF-S308, TF-S309 FCC Identifier: 2A9QS-S301 We authorize MiCOM LabsInc, 575 Boulder Court, Pleasanton, California94566, USA, to act on our behalf on all matters concerning the above named equipment. Any individual within MiCOM Labs is authorized to act on our behalf and take action on the application. We declare that MiCOM LabsInc, 575 Boulder Court, Pleasanton, California 94566, USA, 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 MiCOM Labs on our behalf shall have the same effect as acts of our own. Name: Kai Lv Title: Manager Signature of applicant:

Date: Jan. 07, 2023

Model Difference Declaration To Whom It May Concern, We, Zhejiang Hengdian Imp & Exp. Co., Ltd Product Name: Home Theater Sound Bar System With HDMi (Arc) Trade Mark: Trefan Model Name: TF-S301, TF-S302, TF-S303, TF-S304, TF-S305, TF-S306, TF-S307, TF-S308, TF-S309 All models the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: TF-S301. Please contact me if you have any question. Name: Kai Lv Date: Jan. 07, 2023 Title: Manager Signature of applicant: