FCC ID: 2A3AV-L4X Autodolly

FCC warning 1. This device should be installed and operated with minimum distance 0mm between the radiator&your body. 2. 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. 3. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 4. 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 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. interference

Chongqing Qinchengxing Technology Co., Ltd No.868 Chuangxin Avenue, Zitong Street, Tongnan District, Chongqing, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-7-22 To whom it may concern:

We, Chongqing Qinchengxing Technology Co., Ltd, hereby certify that the equipment for which authorization is sought (FCC ID: 2A3AV-L4X) is not covered equipment prohibited from receiving an equipment authorization pursuant to 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist) as an entity producing covered equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(b) and (d)(5) and (6). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. Sincerely, 3 0 V Signature Romeo Luo Manager Chongqing Qinchengxing Technology Co., Ltd

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CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2023-07-22>

Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products:

FCC ID 2A3AV-L4X Model name L4X For the product stated above, we request that the following information be held confidential;

Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos Users Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Name/Title Romeo Luo/manager Company:

Address:

Chongqing Qinchengxing Technology Co., Ltd No.868 Chuangxin Avenue, Zitong Street, Tongnan District, Chongqing, China 0755-29973977

romeo@yelangu.cn Phone:

Fax:

E-Mail:

Chongqing Qinchengxing Technology Co., Ltd No.868 Chuangxin Avenue, Zitong Street, Tongnan District, Chongqing, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern:

2023.07.22 We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2A3AV-L4X including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins current valid General Terms and Conditions

(AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title Romeo Luo/manager Company:

Address:

Chongqing Qinchengxing Technology Co., Ltd No.868 Chuangxin Avenue, Zitong Street, Tongnan District, Chongqing, China 0755-29973977

romeo@yelangu.cn Phone:

Fax:

E-Mail:

Chongqing Qinchengxing Technology Co., Ltd Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 U.S. Agent Designation 7/22/23 Chongqing Qinchengxing Technology Co., Ltd acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought

(FCC ID: 2A3AV-L4X):

Name and company of U.S. agent:

USA MEIHUA TRADING INC Physical U.S. address of agent:

5379 Pine Valley Ct Boulder CO 80301 United States FRN of U.S. agent:

0033406166 Email address of U.S. agent:

meihua-trading-inc@foxmail.com USA MEIHUA TRADING INC acknowledges their obligation to accept service of process on behalf of Chongqing Qinchengxing Technology Co., Ltd Chongqing Qinchengxing Technology Co., Ltd with the FRN 0031436736 accepts its obligation to maintain an agent for service of process in the United States 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 the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature

[Name] Romeo Luo

[Title]Manager

[Company] Chongqing Qinchengxing Technology Co., Ltd 5 0 V

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