2BC4C-HPD-7878Smart Beads Board

noitcennoC eciveD.3 2.If you don't have App Store or Google Play, please click the third option to download via your local browser. ① ② 1.Firstly, Please turn on Bluetooth and Location 4.Blank Canvas for DIY Creation 5.Import Images for DIY Creation Smart Beads BoardSmart Beads Board 8.APP Settings Scan the QR code below to download and install app with your mobile phone, or enter Google Play/APP Store and search for “ PixDotDot” to download Scan the QR code and download the APP Note: 1：When you open the APP for the first time, please Allow to all permissions 2:Please click the + sign to add a Bluetooth device 3:If Bluetooth cannot be searched on your Android phone, please check if you have tur ned on the GPS. 5.Import Images for DIY Creation FCC 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 1: 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. NOTE 2: Any 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. RF Exposure Statement To maintain compliance with FCC'S RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm between the radiator and your body. This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Collect Materials Enter fuse bead mode Delete Preview Settings Language Clear Screen Device Information APP Update Color Group Model Pegboard Size Add Brush Color Save Pattern and Enter Bead Mode Enter Edit Mode Eraser / Fill / Color Picker Undo / Redo / Clear All Brush Creation Area Highlight Toggle White LED Display / Color LED Display Full Bright Switch / Color Code Switch / Mirror Click to display color number individually Enter Edit Mode Adjust Product Brightness View / Zoom In Zoom Out / Move Replace Existing Colors Import images from phone album Or take photos with your phone Color Group Pegboard Size Model Next page Enter Edit Mode Eraser / Fill / Color Picker Undo / Redo / Clear All Brush Creation Area View / Zoom In Zoom Out / Move Replace Existing Colors Add Brush Color Save Pattern and Enter Bead Mode Highlight Toggle Adjust Product Brightness White LED Display / Color LED Display Full Bright Switch / Color Code Switch / Mirror Click to display color number individually Enter Edit Mode Eraser / Fill / Color Picker Undo / Redo / Clear All Brush Creation Area View / Zoom In Zoom Out / Move 6.Import Pixel Drawings for DIY Creation 7.Collect materials Import drawings from phone album Zoom View Adjust crosshair position Grid Size Adjustment Previous step Next Step Drag the blue box to adjust the range Drawing Size Pegboard Size Identify Drawing Save Pattern and Enter Perler Bead Mode Edit Pattern Color Numbers Color Group Add brush color Highlight Switch Adjust product brightness Replace existing colors Model Next page 6.Import Pixel Drawings for DIY Creation White LED Display / Color LED Display Full Bright Switch / Color Code Switch / Mirror Click to display color number individually Enter Edit Mode

Shenzhen shangu innovation technology co., ltd Covered Equipment Certification Attestation Letter 7/6/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BC4C-HPD-7878 Shenzhen shangu innovation technology co., ltd (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. Shenzhen shangu innovation technology co., ltd (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing “covered” equipment. Shenzhen shangu innovation technology co., ltd (“the applicant”) certifies that the equipment for which authorization is sought does not include cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors and assignees, including equipment with integrated Kaspersky Lab, Inc. (or any of its successors and assignees) cybersecurity or anti-virus software pursuant to DA-24-886 and KDB 986446 D01 Covered Equipment Guidance section B(2a). Signed: Printed name: Leon LIU Title: Manager Company Name: Shenzhen shangu innovation technology co., ltd Date: 7/6/2026

Shenzhen shangu innovation technology co., ltd U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: July 6, 2026 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BC4C-HPD-7878 Shenzhen shangu innovation technology co., ltd(“the applicant”) certifies that, as of the date of the filing of the application, CLF Import and Export Limited (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. CLF Import and Export Limited ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: CLF Import and Export Limited FRN: 0033489683 Address: 1312 17th Street #692, Denver, CO 80202, United States Signature: Contact Person: David Chen Tel: +1 949 254 2565 Email: [email protected] Applicant Shenzhen shangu innovation technology co., ltd FRN: 0034330084 Address: West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China Signature: Contact Person: Leon LIU Tel: 13713682600 Email: [email protected]

DATE: July 6, 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Shenzhen CCUT Quality Technology Co., Ltd. (1F, Building 35, Changxing Technology Indstrl Park Changzhen Community, Yutang Street, Shenzhen, China) to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with Shenzhen shangu innovation technology co., ltd (West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China). <Signature> Name: Leon LIU Title: Manager Applicant Company: Shenzhen shangu innovation technology co., ltd

Date: July 6, 2026 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Compliance Testing, LLC to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). Sincerely, <Signature> Name: Leon LIU Title: Manager Company: Shenzhen shangu innovation technology co., ltd

DATE: July 6, 2026 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BC4C-HPD-7878 Product Name: Smart Beads Board Product Model: HPD-7878, HPD-7878A, HPD-7878B Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commission’s rules, we hereby request that the following documents be held confidential: (List here the documents for which you are seeking confidentiality – for example ...)  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. <Signature> Name: Leon LIU Title: Manager Company: Shenzhen shangu innovation technology co., ltd

Shenzhen shangu innovation technology co., ltd West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China Model Difference Statement DATE: July 6, 2026 Product Model Number: HPD-7878, HPD-7878A, HPD-7878B FCC ID: 2BC4C-HPD-7878 Dear Sir/Madam, Added models HPD-7878A, HPD-7878B basis of the original product HPD-7878 The color of appearance and model name of series models listed are different from the main model, but the circuit and the electronic construction are the same, declared by the manufacturer. Sincerely, Name: Leon LIU Title: Manager Company name: Shenzhen shangu innovation technology co., ltd Address: West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China

Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 1 of 10 Annex A. EUT External Photos Model: HPD-7878 EUT View 1 EUT View 2 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 2 of 10 EUT View 3 EUT View 4 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 3 of 10 EUT View 5 EUT View 6 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 4 of 10 EUT View 7 EUT View 8 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 5 of 10 EUT View 9

Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 10 of 10 Annex D. Label and Inf ormation FCC Label Sample Label Size: 4cm*2cm FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 6 of 10 Annex B. EUT Internal Photos EUT Internal View 1 EUT Internal View 2 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 7 of 10 EUT Internal View 3 EUT Internal View 4 PCB ANT

FCC ID: 2BC4C-HPD-7878 RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm2) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f2) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f2) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r2) Where Pd = power density in mW/cm2, Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm2. If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation BLE Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result BLE 1M -0.41 0.91 0.0002 1.0 PASS The ANT Gain=0.5dBi.

Page 1 of 3 1. General Inf ormation 1.1 Antenna Information Manufacturer: Shenzhen shangu innovation technology co., ltd Address of Manufacturer: West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China Product Name: 2.4GHz Antenna Model Name: HPD-7878 Frequency Range: 2400MHz - 2500MHz Type of Antenna: PCB Antenna Antenna Gain: 0.5dBi (Max.) Impedance: 50 ohm Antenna View: Length * Width (22.8mm * 0.3mm) Page 2 of 3 2. Antenna Specification inf ormation 2.1 Gain Frequency Peak Gain (dBi) Polarity 2400MHz 0.5 Horizontal 2400MHz -1.52 Vertical 2450MHz -1.25 Horizontal 2450MHz -1.58 Vertical 2500MHz -1.46 Horizontal 2500MHz -1.22 Vertical Page 3 of 3 2.2 Radiation Pattern View

Report No: SSP26060280-1E FCC Test Report Page 1 of 38 FCC TEST REPORT FCC ID: 2BC4C-HPD-7878 Report No. : SSP26060280-1E Applicant : Shenzhen shangu innovation technology co., ltd Product Name : Smart Beads Board Model Name : HPD-7878 Test Standard : FCC Part 15.247 Date of Issue : 2026-06-29 Shenzhen CCUT Quality Technology Co., Ltd. 1F, Building 35, Changxing Technology Industrial Park, Yutang Street, Guangming District, Shenzhen, Guangdong, China; (Tel.:+86-755-23406590 website: www.ccuttest.com) This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd. Report No: SSP26060280-1E FCC Test Report Page 2 of 38 Test Report Basic Information Applicant..................................: Shenzhen shangu innovation technology co., ltd Address of Applicant...............: West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China Manufacturer..........................: Shenzhen shangu innovation technology co., ltd Address of Manufacturer........: West of Floor 4, Xinhui Industrial Zone, Tangtou Third Industrial Park, Tangtou Community, Shiyan Street, Baoan District, Shenzhen, 518000 China Product Name.........................: Smart Beads Board Brand Name.............................: - Main Model..............................: HPD-7878 Series Models..........................: HPD-7878A, HPD-7878B Test Standard..........................: FCC Part 15 Subpart C KDB 558074 D01 15.247 Meas Guidance v05r02 ANSI C63.4-2014 ANSI C63.10-2020 + Cor.1-2023 Date of Test .............................: 2026-06-12 to 2026-06-25 Test Result...............................: PASS Tested By ................................: (Tate Chen) Reviewed By............................: (Lorzix Luo) Authorized Signatory............: (Lahm Peng) Note : This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen CCUT Quality Technology Co., Ltd.. All test data presented in this test report is only applicable to presented test sample. Report No: SSP26060280-1E FCC Test Report Page 3 of 38 CONTENTS 1. General Information ....................................................................................................................................................5 1.1 Product Information .............................................................................................................................................5 1.2 Test Setup Information..........................................................................................................................................6 1.3 Compliance Standards ...........................................................................................................................................7 1.4 Test Facilities ........................................................................................................................................................7 1.5 List of Measurement Instruments ..........................................................................................................................8 1.6 Measurement Uncertainty .....................................................................................................................................9 2. Summary of Test Results ........................................................................................................................................... 10 3. Antenna Requirement ............................................................................................................................................... 11 3.1 Standard and Limit.............................................................................................................................................. 11 3.2 Test Result .......................................................................................................................................................... 11 4. Conducted Emissions ................................................................................................................................................ 12 4.1 Standard and Limit.............................................................................................................................................. 12 4.2 Test Procedure.................................................................................................................................................... 12 4.3 Test Data and Results .......................................................................................................................................... 13 5. Radiated Emissions ................................................................................................................................................... 16 5.1 Standard and Limit.............................................................................................................................................. 16 5.2 Test Procedure.................................................................................................................................................... 16 5.3 Test Data and Results .......................................................................................................................................... 18 6. Band-edge Emissions(Radiated) ............................................................................................................................... 22 6.1 Standard and Limit.............................................................................................................................................. 22 6.2 Test Procedure.................................................................................................................................................... 22 6.3…

Text truncated - open the document above for the full version.

Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 8 of 10 Annex C. Test Photos Conducted Emission Test View 1 Radiated Emission Test View 1 Report No: SSP26060280-1E FCC ID: 2BC4C-HPD-7878 Annex of Test Report Page 9 of 10 Radiated Emission Test View 2