FCC ID: 2A57S-71101 Building Blocks Toys

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.

Page 1 of 1 FCC ID: 2A57S-71101 LABEL AND LOCATION Building Blocks Toys Model: 71101 FCC ID: 2A57S-71101

(Size: L: 2.0cm x W: 1.0cm) Label Location Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: webmaster@lcs-cert.com | Web: www.lcs-cert.com Scan code to check authenticity

Antenna Specification for Approval Customer Name Fuwei Product Name 2.4G antenna Product Name:

Part NO.:

C1.0-30-

3 Write By Zhou Min Issued Date: 2015-12-8 Customer:

R&D Dept Business Dept Approved By Li Xin Hui R&D Dept Engineer Dept Approval

. R E MV F C R E I L P P U S I G N K C E H C E T A D I G N W R D E L A C S N I T I N U I L A R E T A M E L T I T T R A P Product Specification A. Electrical Characteristics Frequency 2400MHz ~2500MHz VSWR <1.0 Efficiency >50%

Impedance 50 Ohm Polarization Line Gain 0dBi B. Material & Mechanical Characteristics Material of Radiator Cu Cable Type 1.13 Connector Type : NO Dimension C. Environmental Operation Temperature - 30 C ~ + 80 C Storage Temperature - 30 C ~ + 85 C Test Equipment & Conditions 1 Network Analyzers

Agilent 8753D 5071B 2 Communications Test Set:

Agilent E5515C 3 3D Chamber Test System Effiency &Gain Effiency &Gain

-0.01 dBi 2.40 2.440 0.12 dBi 0.17 dBi 2.48 Radiation Pattern:

Shenzhen Aifu Network Technology Co.,Ltd Add: Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Date: 2022-9-2 FCC ID: 24578-71101 Dear Sir/Madam, We, Shenzhen Aifu Network Technology Co.,Ltd Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model:

Product name: Building Blocks Toys Model no.: 71101, 31001, 31002, 31003, 31004, 31005, 31101, 31102, 31103, 31104, 31105, 31106, 31107, 31108, 31109, 31110, 41001, 41002, 41003, 41004, 41005, 41101, 41102, 41103, 41104, 41105, 41106, 41107, 41108, 41109, 41110, 51001, 51002, 51003, 51004, 51005, 51101, 51102, 51103, 51104, 51105, 51106, 51107, 51108, 51109, 51110, 51111, 51112, 51113, 51114, 51115, 51116, 51117, 51118, 51119, 51120, 61001, 61002, 61003, 61004, 61005, 61101, 61102, 61103, 61104, 61105, 61106, 61107, 61108, 61109, 61110, 61111, 61112, 61113, 61114, 61115, 61116, 61117, 61118, 61119, 61120, 61121, 61122, 61123, 61124, 61125, 61126, 61127, 61128, 61129, 61130, 61131, 61132, 61133, 61134, 61135, 61136, 61137, 61138, 61139, 61140, 61141, 61142, 61143, 61144, 61145, 61146, 61147, 61148, 61149, 61150, 71001, 71002, 71003, 71004, 71005, 71102, 71103, 71104, 71105, 71106, 71107, 71108, 71109, 71110, 31XYZ(XYZ:001-200), 41XYZ(XYZ:001-200), 51XYZ(XYZ:001-200), 61XYZ(XYZ:001-200), 71XYZ(XYZ:001-200) Sincerely, Le fon Name/Title: Fan Liu/CFO Company: Shenzhen Aifu Network Technology Co.Ltd Address: Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Phone: 18565071082 Fax: /

E-Mail: snxdliufan@dingtalk.com

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2022-9-2>

Pursuant to Paragraphs 0.457 and 0.459 of the Commission's 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 Model name 2A57S-71101 71101 For the product stated above, we request that the following information be held confidential;

Long-Term Exhibits Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos, Block Diagram Schematics Test Setup Photos User's Manual Parts List Tune Up OOOO RRoO) Operational Descriptions. Dopooo8o5) 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. Sincerely, Lo for Name/Title:

Company:

Address:

Phone:

Fax:

E-Mail:

Fan Liu/CFO Shenzhen Aifu Network Technology Co.,Ltd Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China 18565071082

snxdliufan@dingtalk.com

Shenzhen Aifu Network Technology Co.,Ltd Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China. Date: 2022-9-2 FCC ID: 24578-71101 Model Number: 71101 To:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD To Whom It May Concern, We, Shenzhen Aifu Network Technology Co.,Ltd, declare that this EUT (FCC ID:

2A57S-71101) doesnt have Ad Hoc mode function on non-US/Canada frequencies. In addition. The frequency selection feature is disabled by firmware for devices marked to the US/Canada. For DTS part of this device, only channels 1-11 will be used in North America, Country code selection is disabled. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, Lo for Name/Title: Fan Liu/CFO Company: Shenzhen Aifu Network Technology Co,Ltd Address: Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Phone: 18565071082 Fax: /

E-Mail: snxdliufan@dingtalk.com

Shenzhen Aifu Network Technology Co.,Ltd Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2022-9-2 To whom it may concern:

We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behaffin all matters relating to applications for equipment authorization FCC ID: 2A57S-71101 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 wwweurofins.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, Lo for Name/Title: Fan Liu/CFO Company: Shenzhen Aifu Network Technology Co.,Ltd Address: Room301B306, Yousuowei Building, No.2000, Jiaxian Road, Gangtou Community, Bantian Street, Longgang District, Shenzhen, China Phone: 18565071082 Fax: /

E-Mail: snxdliufan@dingtalk.com