2BSRR-W320PUSmart HD Baby Monitor Panel unit

Page 1 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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: 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. For BU This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. For PU The device has been tested and comply with FCC SAR limits. Model: ZVM320

Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 1 / 6 Internal Photos Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 2 / 6 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 3 / 6 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 4 / 6 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 5 / 6 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT Internal Photos Internal Photos Page 6 / 6 ANT ***** END *****

Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF Test Photos Test Photos Page 1 / 3 Photo of Power Line Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF Test Photos Test Photos Page 2 / 3 Radiated Spurious Emissions Test View (9kHz-30MHz) Radiated Spurious Emissions Test View (30MHz- 1GHz) Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF Test Photos Test Photos Page 3 / 3 Radiated Spurious Emissions Test View (1GHz-18GHz) Radiated Spurious Emissions Test View (Above 18GHz) ***** END *****

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA, or any agency of the Federal Government. The information marked ―#‖ is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included but no need marked. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. Floor 1, KuMaKe Building, Dongzhou Community, Guangming Street, Guangming District, Shenzhen, Guangdong, China. Tel: +86 755-26503290 Web: www.atc-lab.com Rev:A/4.0(2024/11/01) Page 1 of 68 TR-4-E-R024 TEST REPORT Applicant Name: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address: Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China Report Number: 2504Z84676E-RF-00A FCC ID: 2BSRR-W320PU Test Standard (s) FCC PART 15.247 Sample Description Product Name: Smart HD Baby Monitor Panel unit Model No.: ZVM320(PU), ZVM220(PU), ZVM221(PU), ZVM721(PU), ZVM420(PU), ZVM421(PU), ZVM520(PU), ZVM521(PU), ZVM620(PU), ZVM621(PU), GVM120(PU), GVM121(PU), GVM220(PU), GVM221(PU), GVM320(PU), GVM321(PU), GVM420(PU), GVM421(PU), GVM520(PU), GVM521(PU) W320(PU) Trade Mark: WALOLWA Date Received: 2025-11-10 Report Date: 2026-01-14 Test Result: The EUT complied with the standards above. Prepared and Checked By: Approved By: Roger Ling Bob.Liao EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-RF-00A Rev:A/4.0(2024/11/01) Page 2 of 68 TR-4-E-R024 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ................................................................................................................ 4 GENERAL INFORMATION ............................................................................................................................ 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ........................................................................ 5 OBJECTIVE ................................................................................................................................................... 6 TEST METHODOLOGY .................................................................................................................................... 6 TEST FACILITY .............................................................................................................................................. 6 MEASUREMENT UNCERTAINTY ....................................................................................................................... 6 SYSTEM TEST CONFIGURATION ............................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION......................................................................................................... 7 EUT EXERCISE SOFTWARE AND POWER LEVEL # ............................................................................................ 7 SPECIAL ACCESSORIES ................................................................................................................................. 7 EQUIPMENT MODIFICATIONS .......................................................................................................................... 7 SUPPORT EQUIPMENT LIST AND DETAILS ....................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................... 7 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................. 8 SUMMARY OF TEST RESULTS ................................................................................................................. 10 TEST EQUIPMENT LIST ............................................................................................................................. 11 RF EXPOSURE ............................................................................................................................................ 12 ANTENNA REQUIREMENT......................................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................... 13 ANTENNA CONNECTOR CONSTRUCTION ....................................................................................................... 13 AC LINE CONDUCTED EMISSIONS .......................................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................... 14 EUT SETUP ................................................................................................................................................ 14 EMI TEST RECEIVER SETUP ........................................................................................................................ 14 TEST PROCEDURE ...................................................................................................................................... 14 CALCULATION ............................................................................................................................................. 15 TEST DATA ...................................…

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. Measurement Report for ZVM320(PU), EDGE LEFT, ISM 2.4 GHz Band, UID 10030 CAA, (2440.000MHz) Device under Test Properties Model, Manufacturer Dimensions [mm] IMEI DUT Type ZVM320(PU), 124.0 x 72.0 x 24.0 other Exposure Conditions Phantom Section, TSL Position, Test Distance [mm] Band Group, UID Frequency [MHz], Channel Number Conversion Factor TSL Conductivity [S/m] TSL Permittivity Flat, HSL EDGE LEFT, 0.00 ISM 2.4 GHz Band 10030-CAA 2440.000, 7.15 1.80 39.52 Hardware Setup Phantom TSL, Measured Date Probe, Calibration Date DAE, Calibration Date Twin-SAM V8.0 (30deg probe tilt) - 2124 HBBL600-10000V6220406-1, 2026-Jan-16 EX3DV4 - SN7896, 2025-12-11 DAE4 Sn1724, 2025-03-14 Scan Setup Area Scan Zoom Scan Grid Extents [mm] 60.0 x 160.0 30.0 x 30.0 x 30.0 Grid Steps [mm] 10.0 x 10.0 5.0 x 5.0 x 1.5 Sensor Surface [mm] 1.4 1.4 Graded Grid N/A Yes Grading Ratio N/A 1.5 MAIA Y Y Surface Detection VMS + 6p VMS + 6p Scan Method Measured Measured Measurement Results Area Scan Zoom Scan Date 2026-01-16, 22:27 2026-01-16, 22:36 psSAR1g [W/kg] 0.193 0.213 psSAR10g [W/kg] 0.082 0.101 Power Drift [dB] 0.12 0.01 Power Scaling Disabled Disabled Scaling Factor [dB] TSL Correction No correction No correction M2/M1 [%] 80.1 Dist 3dB Peak [mm] 7.0 Warning(s) / Error(s) Details Area Scan Zoom Scan Warning(s) Error(s)

Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 1 of 2 APPENDIX D RETURN LOSS&IMPEDANCE MEASUREMENT D2450V2 - SN:751 Extended Dipole Calibrations Per FCC KDB 865664 D01, calibration intervals of up to 3 years may be considered for reference dipoles when it is demonstrated that the SAR target, impedance and return loss of a dipole have remained stable according to the following requirements. 1. The measured SAR does not deviate more than 10% from the target on the calibration certificate. 2. The return-loss does not deviate more than 20% from the previous measurement and meets the required 20 dB minimum return-loss requirement. 3. The measurement of real or imaginary parts of impedance does not deviate more than 5Ω from the previous measurement. The following dipole was checked to pass the above 3 requirements to have 3-year calibration period from calibration date. Calibrated Equipment: Verification Date Equipment Model S/N Calibration Date Calibration Due Date 2024/09/25 Simulated Tissue Liquid Head HBBL600-10000V6 220406-1 Each Time SAM Twin Phantom SAM-Twin V5.0 1744 NCR NCR Network Analyzer E5071B MY42403851 2024/01/12 2025/01/11 Network Analyzer Calibration Kit 85033E MY53402696 NCR NCR 2025/09/24 Simulated Tissue Liquid Head HBBL600-10000V6 220406-1 Each Time SAM Twin Phantom SAM-Twin V5.0 1744 NCR NCR Network Analyzer E5071B MY42403851 2024/10/08 2025/10/07 Network Analyzer Calibration Kit 85033E MY53402696 NCR NCR Test Data: D2450V2 - SN:751 2450MHz Head Date of Measurement Return Loss (dB) Delta (%) Real Impedence(Ω) Delta (Ω) Imaginary Impedence(Ω) Delta (Ω) 2023/09/26 -25.2 / 53.9 / 4.18 / 2024/09/25 -27.5 9.1 50.2 3.7 4.23 0.05 2025/09/24 -26.5 5.2 49.7 4.2 4.7 0.52 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 2 of 2 Calibrated By: Lance Li Calibrated By: Lance Li

Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 1 of 29 APPENDIX C CALIBRATION CERTIFICATES Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 2 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 3 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 4 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 5 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 6 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 7 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 8 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 9 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 10 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 11 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 12 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 13 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 14 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 15 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 16 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 17 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 18 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 19 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 20 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 21 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 22 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 23 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 24 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 25 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 26 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 27 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 28 of 29 Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 29 of 29

Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 1 of 4 APPENDIX B - EUT TEST POSITION PHOTOS Liquid depth ≥ 15cm Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 2 of 4 Body Front Setup Photo (0mm) Body Back Setup Photo (0mm) Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 3 of 4 Body Left Setup Photo (0mm) Body Right Setup Photo (0mm) Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Page 4 of 4 Body Top Setup Photo (0mm) Body Bottom Setup Photo (0mm)

Note: This report must not be used by the customer to claim product certification, approval, or endorsement by A2LA, or any agency of the Federal Government. The information marked ―#‖ is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included but no need marked. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. Floor 1, KuMaKe Building, Dongzhou Community, Guangming Street, Guangming District, Shenzhen, Guangdong, China. Tel: +86 755-26503290 Web: www.atc-lab.com Rev:A/4.0(2024/11/01) Page 1 of 29 TR-4-E-R050 TEST REPORT Applicant Name: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address: Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China Report Number: 2504Z84676E-SA FCC ID: 2BSRR-W320PU Test Standard (s) FCC 47 CFR part 2.1093 Sample Description Product Type: Smart HD Baby Monitor Panel unit Model No.: ZVM320(PU), ZVM220(PU), ZVM221(PU), ZVM721(PU), ZVM420(PU), ZVM421(PU), ZVM520(PU), ZVM521(PU), ZVM620(PU), ZVM621(PU), GVM120(PU), GVM121(PU), GVM220(PU), GVM221(PU), GVM320(PU), GVM321(PU), GVM420(PU), GVM421(PU), GVM520(PU), GVM521(PU), W320(PU) Trade Mark: WALOLWA Date Received: 2026-01-10 Issue Date: 2026-01-20 Test Result: The EUT complied with the standards above. Prepared and Checked By: Approved By: Jack Yang Lance Li SAR Engineer SAR Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Rev:A/4.0(2024/11/01) Page 2 of 29 TR-4-E-R050 Mode Max. Reported SAR Level(s) (W/kg) Limit (W/kg) SRD 2.4G 1g Body SAR 0.26 1.6 Applicable Standards FCC 47 CFR part 2.1093 Radiation exposure evaluation: portable devices RF Exposure Procedures: TCB Workshop April 2019 IEEE 1528:2013 IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques KDB procedures KDB 447498 D01 General RF Exposure Guidance v06 KDB 865664 D01 SAR Measurement 100 MHz to 6 GHz v01r04 KDB 865664 D02 RF Exposure Reporting v01r02 Note: This wireless device has been shown to be capable of compliance for localized specific absorption rate (SAR) for General Population/Uncontrolled Exposure limits specified in FCC 47 CFR part 2.1093 and has been tested in accordance with the measurement procedures specified in IEEE 1528-2013 and RF exposure KDB procedures. The results and statements contained in this report pertain only to the device(s) evaluated. Unless otherwise stated there are no any additions to, deviations, or exclusions from the method. Shenzhen Accurate Technology Co., Ltd. Report No.: 2504Z84676E-SA Rev:A/4.0(2024/11/01) Page 3 of 29 TR-4-E-R050 TABLE OF CONTENTS DOCUMENT REVISION HISTORY .......................................................................................................................... 4 EUT DESCRIPTION .................................................................................................................................................... 5 TECHNICAL SPECIFICATION........................................................................................................................................ 5 REFERENCE, STANDARDS, AND GUILDELINES .............................................................................................. 6 SAR LIMITS ................................................................................................................................................................ 6 FACILITIES................................................................................................................................................................... 7 DESCRIPTION OF TEST SYSTEM .......................................................................................................................... 8 Recommended Tissue Dielectric Parameters for Head liquid .................................................................... 13 EQUIPMENT LIST AND CALIBRATION ............................................................................................................... 14 EQUIPMENT’S LIST & CALIBRATION INFORMATION .................................................................................................. 14 SAR MEASUREMENT SYSTEM VERIFICATION ............................................................................................... 15 LIQUID VERIFICATION ............................................................................................................................................... 15 SYSTEM ACCURACY VERIFICATION ......................................................................................................................... 16 SAR SYSTEM VALIDATION DATA .................................................................................................................... 17 EUT TEST STRATEGY AND METHODOLOGY .................................................................................................. 18 TEST POSITIONS FOR BODY-WORN AND OTHER CONFIGURATIONS ......................................................................... 18 TEST DISTANCE FOR SAR EVALUATION.................................................................................................................. 18 CONDUCTED OUTPUT POWER MEASUREMENT ........................................................................................... 19 TEST PROCEDURE ............................................................................................................…

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Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel: +86 0755-27739805 CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID:2BSRR-W320PU SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment.And our product does not use Kaspersky software information. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

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Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT External Photos External Photos Page 1 / 5 External Photos Test model: ZVM320(PU) Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT External Photos External Photos Page 2 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT External Photos External Photos Page 3 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT External Photos External Photos Page 4 / 5 Shenzhen Accurate Technology Co., Ltd. No.: 2504Z84676E-RF EUT External Photos External Photos Page 5 / 5 ***** END *****

Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel: +86 0755-27739805 Date: 2025-12-30 Declaration of Similarity FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: We, SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD hereby declare that we have a product named as Smart HD Baby Monitor Panel unit, the models: ZVM320(PU), ZVM220(PU), ZVM221(PU), ZVM721(PU), ZVM420(PU), ZVM421(PU), ZVM520(PU), ZVM521(PU), ZVM620(PU), ZVM621(PU), GVM120(PU), GVM121(PU),GVM220(PU), GVM221(PU), GVM320(PU), GVM321(PU), GVM420(PU),GVM421(PU), GVM520(PU), GVM521(PU), W320(PU), FCC ID:2BSRR-W320PU. All of the models are electrically identical, the difference among them is model name and sales channels. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel:+86 0755-27739805 FCC Confidential Authorization Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID:2BSRR-W320PU In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

QA-FR-170-B Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel: +86 0755-27739805 FCC Authorization Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We (SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD), the undersigned, hereby authorize Shenzhen Accurate Technology Co., Ltd. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel: +86 0755-27739805 CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID:2BSRR-W320PU SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD 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. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

Company: SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community Matian Street, Guangming District, Shenzhen, Guangdong, China Email: [email protected] Tel: +86 0755-27739805 Attestation letter Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: We, SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD, have a product Smart HD Baby Monitor Panel unit, Model name: ZVM320(PU), ZVM220(PU), ZVM221(PU), ZVM721(PU), ZVM420(PU), ZVM421(PU), ZVM520(PU), ZVM521(PU), ZVM620(PU), ZVM621(PU), GVM120(PU), GVM121(PU), GVM220(PU), GVM221(PU), GVM320(PU), GVM321(PU), GVM420(PU), GVM421(PU), GVM520(PU), GVM521(PU), W320(PU), FCC ID: 2BSRR-W320PU.for the purpose of marketing, this product only supports SRD (2402-2476 MHz). The other functions were disabled to use by manufacturer in the software, the end user has no capability to activate it. Sincerely Yours, Signature: Andy Lai Printed Name: andy lai Title: Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2025-12-30 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID:2BSRR-W320PU SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD certifies that, as of the date of the filing of the application, Iconsigh is our designated U.S. agent for service of process for the above referenced FCC ID. SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Iconsigh accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Iconsigh Address: 2310 Homestead Road, Suite C1, Los Altos, CA, 94024, United States FRN: 0033398652 Tel.: +1 (408) 320-9867 Email: [email protected] Signed by (printed name): Benjamin Kaur Signature: Applicant:SHENZHEN ZEYUTONG ELECTRONICS CO.,LTD Address:Room 205, Building 1, Geya Technology Building, Mashantou Community, Matian Street, Guangming District, Shenzhen, Guangdong, China FRN:0037613502 Tel: +86 0755-27739805 Email:[email protected] Signed by (printed name): andy lai Signature: Andy Lai