FCC ID: 2AZSY-SR-DX2 True Wireless Earbuds

FCC Caution 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Label and label location FCC ID LABEL:

Label Location:

FCC ID: 2AZSY-SR-DX2 Put in the User Manual

Dongguan Symsta Electronics.,LTD. Section 2.911(d)(5)(i) Certification Equipment Type Company name:Dongguan Symsta Electronics.,LTD. Address:Building 1,No. 9, Xifa Road, Lincun,Tangxia Town, Dongguan China Product Name:True Wireless Earbuds FCC ID:2AZSY-SR-DX2 Model(s):SR-DX2, ST-M10 2.911(d)(5)(i) Equipment Type We, [Dongguan Symsta Electronics.,LTD.] (the applicant) certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Name:Aaron Zhang Date:2023.12.25 Title and Company name:Sales Manager/ Dongguan Symsta Electronics.,LTD. NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

Dongguan Symsta Electronics.,LTD. Section 2.911(d)(5)(ii) Certification Applicant (Covered List) Company name:Dongguan Symsta Electronics.,LTD. Address:Building 1,No. 9, Xifa Road, Lincun,Tangxia Town, Dongguan China Product Name:True Wireless Earbuds FCC ID:2AZSY-SR-DX2 Model(s):SR-DX2, ST-M10 2.911(d)(5)(ii) Applicant filing We, [Dongguan Symsta Electronics.,LTD.] (the applicant) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name:Aaron Zhang Date:2023.12.25 Title and Company name:Sales Manager/ Dongguan Symsta Electronics.,LTD. NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.3

Dongguan Symsta Electronics.,LTD. Section 2.911(d)(7) USA Agent for Service of Process Company name:Dongguan Symsta Electronics.,LTD. Address:Building 1,No. 9, Xifa Road, Lincun,Tangxia Town, Dongguan China Product Name:True Wireless Earbuds FCC ID:2AZSY-SR-DX2 Model(s):SR-DX2, ST-M10 2.911(d)(7) USA Designated Agent for Service of Process We, [Dongguan Symsta Electronics.,LTD.] (the applicant) designate [Stone Trading Limited] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent: We acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. the designated agent and acknowledge our address and email address of acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either we the grantee have permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation: We acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email address for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or at the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. USA Agent Applicant Company name: Stone Trading Limited USA Address: 6547 N Academy Blvd

#2266,Colorado Springs,CO 80918,United States FRN Number0033401936 Contact Name:Dongmei Fang Telephone No:+12134573118 Email:compliance@c-shlink.com Signature:

Title:N/A Date:2023.12.25 Company name: Dongguan Symsta Electronics.,LTD. Address:Building 1,No. 9, Xifa Road, Lincun,Tangxia Town, Dongguan China Grantee FRN Number:0030869564 FCC Grantee Code:2AZSY Contact Name:Aaron Zhang Telephone No:15015484215 Email:992093984@qq.com Signature:

Title:Sales Manager Date: 2023.12.25 2.911 (d)(7)USA Agent v1.5 Dongguan Symsta Electronics.,LTD. NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the 2.911 (d)(7)USA Agent v1.5

Dongguan Symsta Electronics.,LTD. Agent Authorization Company:Dongguan Symsta Electronics.,LTD. Address:Building 1,No. 9, Xifa Road, Lincun,Tangxia Town, Dongguan China Product Name:True Wireless Earbuds Model Number(s):SR-DX2, ST-M10 Product Description:True Wireless Earbuds We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required 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. Signature:

Date: 2023.12.25 Name:

Aaron Zhang Title:

Sales Manager Company: Dongguan Symsta Electronics.,LTD.

Dongguan Symsta Electronics.,LTD. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Subject; Request for Confidentiality FCC ID: 2AZSY-SR-DX2 To Whom It May Concern, 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. Date: 2023.12.25 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 In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR 2.803 and the importation rules in Title 47 CFR 2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s);

External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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:

Name: Aaron Zhang Title:Sales Manager

Dongguan Symsta Electronics.,LTD Model Difference Product description: True Wireless Earbuds Model name: SR-DX2 ST-M10 Trade Name: N/A All the model are the same circuit and RF module, only the model name is different. Regards Sincerely Clients signature:

Clients name / title : Aaron Zhang/Sales Manager Contact information / address:4th floor, No. 4 Qilin East Road, Da Ning, Humen Town, Dongguan, China.