2BXJC-GST38739603VIDEO WALKIE TALKIES

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BXJC-GST38739603 GS-Q21412, 2698413 We, Applicant Company Name: GST Enterprise Ltd. Address: Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Phone: +86-574-28873295 certify 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. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-8-10 Signature ( Sera Mao) Date Printed Name of Signee: Company: GST Enterprise Ltd. Address: Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Phone: +86-574-28873295 Fax: N/A Email: [email protected]

One Distribution Center Circle, Suite #1 Littleton, MA 01460 Tel: +1 978 486 8880 Email: [email protected] Website: https://www.cps.bureauveritas.com/ Page 1 of 2 SCS-F236 Attestation of US Agent for Service Process Rev 1.0 Attestation of US Agent for Service Process Reason for Amendment Revision # Approved Date To Initial Release 1.0 Jul-01-2024 GST Enterprise Ltd. Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA FCC ID: 2BXJC-GST38739603 Date of Filing to TCB: 2026.8.13 Applicant FRN: 0038739603 Ref: Attestation Statements Part 2.911(d)(7) Filing [GST Enterprise Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, [FCC US Agent, LLC] is our designated U.S. agent for service of process for the above referenced FCC ID. [GST Enterprise 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 and will notify the TCB/FCC in a timely manner if the US Processing Agent changes. [FCC US Agent, LLC] 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: Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Tel.: 708-571-3148 Email: [email protected] Sincerely, (Applicant printed name) Sera Mao (Applicant signature) (US Local Agent printed name) Tim Payne (US Local Agent signature)

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern 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 request confidentiality for the documentation of the following products: FCC ID Model name 2BXJC-GST38739603 GS-Q21412, 2698413 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-8-10 Signature ( Sera Mao) Date Printed Name of Signee: Company: GST ENTERPRISE LTD. Address: Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Phone: +86-574-28873295 Fax: N/A Email: [email protected]

(GSTEnterpriseLtd.) (ZhizaogangC6-2,Lane1000,YunshanRoad,Ningbo,China) Declaration Date:2026.8.17 FCCID:2BXJC-GST38739603 ModelNumber:GS-Q21412,2698413 To: FederalCommunicationsCommission AuthorizationandEvaluationDivision 1435OaklandMillsRoad Columbia,MD21046 ToWhomItMayConcern: We,GSTEnterpriseLtd.declarethatthisEUT(FCCID:2BXJC-GST38739603)doesn’thave AdHocmodefunctionon“non-US/Canadafrequencies”.Inaddition.Thefrequency selectionfeatureisdisabledbyfirmwarefordevicesmarkedtotheUS/Canada.ForDTS partofthisdevice,onlychannels1-11willbeusedinNorthAmerica,Countrycode selectionisdisabled. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehavemybest attention. Name/TitleSeraMao/sales CompanyNameGSTEnterpriseLtd. CompanyAddress ZhizaogangC6-2,Lane1000,YunshanRoad,Ningbo,China Tel:+86-574-28873295 Fax:N/A Email:[email protected]

GST Enterprise Ltd. Declaration of Identical Product Hereby, Name of manufacturer: GST Enterprise Ltd. Address: Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China City: Ningbo Country: China declares that: Product description: VIDEO WALKIE TALKIES Type designation(s): 2698413 Trademark: Family name NA is technically identical to: Product description: VIDEO WALKIE TALKIES Type designation: GS-Q21412 Trademark: Certificate number (if applicable) They are identical with the test model GS-Q21412 except the model No. for trading purposes. Date: 2026.8.10 City: Ningbo Name: Sera Mao Signature

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 4 Report Version A Reference No.: 2606WDG0261-1 PHOTOGRAPHS OF THE EUT Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 4 Report Version A Reference No.: 2606WDG0261-1 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 4 Report Version A Reference No.: 2606WDG0261-1 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 4 Report Version A Reference No.: 2606WDG0261-1

标签内容： 效果图： FCC ID: 2BXJC-GST38739603 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. SKU# 2698413 Made in China

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 5 Report Version A Reference No.: 2606WDG0261-1 PHOTOGRAPHS OF THE EUT Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 5 Report Version A Reference No.: 2606WDG0261-1 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 5 Report Version A Reference No.: 2606WDG0261-1 WIFI Antenna Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 5 Report Version A Reference No.: 2606WDG0261-1 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 5 Report Version A Reference No.: 2606WDG0261-1

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 6 Report Version 1 Test Report No.: FM2606WDG0261 RF EXPOSURE REPORT Applicant GST Enterprise Ltd. Address Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Manufacturer or Supplier GST Enterprise Ltd. Address Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Product VIDEO WALKIE TALKIES Brand Name N/A Model GS-Q21412 Additional Model & Model Difference 2698413; see items 1 Date of tests Jul. 31, 2026 ~ Aug. 03, 2026 FCC Part 2 (Section 2.1093) KDB 447498 D01 V06 IEEE C95.1 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Prepared by Lucas Chen Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Aug. 12, 2026 This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 6 Report Version 1 Test Report No.: FM2606WDG0261 TABLE OF CONTENTS RELEASE CONTROL RECORD ................................................................................ 3 1. CERTIFICATION .............................................................................................. 4 2. RF EXPOSURE DEFINE ................................................................................. 5 3. CLASSIFICATION ........................................................................................... 5 4. CALCULATED RESULT OF MAXIMUM CONDUCTED POWER .................... 6 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 6 Report Version 1 Test Report No.: FM2606WDG0261 RELEASE CONTROL RECORD ISSUE NO. REASON FOR CHANGE DATE ISSUED FM2606WDG0261 Original release Aug. 12, 2026 Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 4 of 6 Report Version 1 Test Report No.: FM2606WDG0261 1. CERTIFICATION FCC ID: 2BXJC-GST38739603 PRODUCT: VIDEO WALKIE TALKIES BRAND NAME: N/A MODEL NO.: GS-Q21412 ADDITIONAL NO.: 2698413 APPLICANT: GST Enterprise Ltd. STANDARDS: FCC Part 2 (Section 2.1093) KDB 447498 D01 V06 IEEE C95.1 NOTE: Additional model 2698413 is identical with test model GS-Q21412 except the model No. for trading purposes. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 5 of 6 Report Version 1 Test Report No.: FM2606WDG0261 2. RF EXPOSURE DEFINE The corresponding SAR Exclusion Threshold condition, listed below: 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,16 where ➢  f(GHz) is the RF channel transmit frequency in GHz ➢  Power and distance are rounded to the nearest mW and mm before calculation ➢  The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. 2) At 100 MHz to 6 GHz and for test separation distances > 50 mm, the SAR test exclusion threshold is determined according to the following: a) [Threshold at 50 mm in step 1) + (test separation distance - 50 mm)·( f(MHz)/150)] mW, at 100MHz to 1500 MHz b) [Threshold at 50 mm in step 1) + (test sep…

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ANTENNASPECIFICATION StyleNo.:YX-ALK-DJ05 Manufacturer:ShenzhenYixinElectronicTechnologyCo.,Ltd Address:Room201,Building2,NantaiYunchuangValley,PhoenixStreet, GuangmingDistrict,ShenzhenCity,China,518107 No.ITEMSDETAILS 1ModelDJ05 2FrequencyRange 2400-2500MHz 3VSWR ≤ 2.0 4Impedance 50Ω 5AntennaStylemonopole 6AntennaeffectstyleCoppertube 7AntennaPicture 8Temperaturerangeforuse -20~+65 °C 9Temperaturerangeforstorage -30~+75 °C Materials: 1.Coppertube:brass 2.RFcable:totallength61.5mm,φ1.13(1 st generationterminal) Structure/Dimensions: Testingenvironment&instrumentequipment: Testingsituation: Humidity:10°C-+30°C RelativeHumidity：≤80%（+40°C） AtmosphericPressure：750mmkg±30mmkg TestingMachine: NetworkAnalyzer KEYSIGHTE5071C Multiprobemicrowavedarkroom Productelectricalperformancetestdata: Marker2400MHz2450MHz2500MHz Returnloss1.221.391.53 VSWR-20-15.79-13.92 Product-S11Picture: Gain,efficiency,andradiation： Frequency(MHz)Gain(dBi)Efficiency 24002.0662.40 24502.3062.41 25001.8864.65 Date:11/05/2025 ShenzhenYixinElectronicTechnologyCo.,Ltd

Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 40 Report Version 1 Test Report No.: RF2606WDG0261 TEST REPORT Applicant GST Enterprise Ltd. Address Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Manufacturer or Supplier GST Enterprise Ltd. Address Zhizaogang C6-2, Lane 1000, Yunshan Road, Ningbo, China Product VIDEO WALKIE TALKIES Brand Name N/A Model GS-Q21412 Additional Model & Model Difference 2698413; see items 3.1 Date of tests Jul. 31, 2026 ~ Aug. 03, 2026 The tests have been carried out according to the requirements of the following standard: FCC Part 15, Subpart C, Section 15.247 CONCLUSION: The submitted sample was found to COMPLY with the test requirement Prepared by Lucas Chen Project Engineer / EMC Department Approved by Glyn He Assistant Manager / EMC Department Date: Aug. 12, 2026 This report is governed by, and incorporates by reference, the Conditions of Testing as posted at the date of issuance of this report at http://www.bureauveritas.com/home/about-us/our-business/cps/about-us/terms-conditions/ and is intended for your exclusive use. Any copying or replication of this report to or for any other person or entity, or use of our name or trademark, is permitted only with our prior written permission. This report sets forth our findings solely with respect to the test samples identified herein. The results set forth in this report are not indicative or representative of the quality or characteristics of the lot from which a test sample was taken or any similar or identical product unless specifically and expressly noted. Our report includes all of the tests requested by you and the results thereof based upon the information that you provided to us. Measurement uncertainty is only provided upon request for accredited tests. Statements of conformity are based on simple acceptance criteria without taking measurement uncertainty into account, unless otherwise requested in writing. You have 60 days from date of issuance of this report to notify us of any material error or omission caused by our negligence or if you require measurement uncertainty; provided, however, that such notice shall be in writing and shall specifically address the issue you wish to raise. A failure to raise such issue within the prescribed time shall constitute your unqualified acceptance of the completeness of this report, the tests conducted and the correctness of the report contents. Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 40 Report Version 1 Test Report No.: RF2606WDG0261 TABLE OF CONTENTS 1 SUMMARY OF TEST RESULTS .................................................................................................... 5 2 MEASUREMENT UNCERTAINTY ................................................................................................. 5 3 GENERAL INFORMATION ............................................................................................................ 6 3.1 GENERAL DESCRIPTION OF EUT ........................................................................................... 6 3.2 DESCRIPTION OF TEST MODES ............................................................................................. 7 3.2.1 CONFIGURATION OF SYSTEM UNDER TEST ............................................................... 7 3.2.2 TEST MODE APPLICABILITY AND TESTED CHANNEL DETAIL .................................... 7 3.3 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................ 9 3.4 DESCRIPTION OF SUPPORT UNITS ....................................................................................... 9 3.5 CONFIGURATION OF SYSTEM UNDER TEST ...................................................................... 10 3.6 DUTY CYCLE OF TESET SIGNAL ............................................................................................ 11 4 TEST TYPES AND RESULTS ...................................................................................................... 12 4.1 RADIATED EMISSION MEASUREMENT ................................................................................ 12 4.1.1 LIMITS OF RADIATED EMISSION MEASUREMENT .................................................... 12 4.1.2 TEST INSTRUMENTS ..................................................................................................... 13 4.1.3 TEST PROCEDURES ..................................................................................................... 14 4.1.4 DEVIATION FROM TEST STANDARD ........................................................................... 14 4.1.5 TEST SETUP ................................................................................................................... 15 4.1.6 EUT OPERATING CONDITIONS .................................................................................... 16 4.1.7 TEST RESULTS .............................................................................................................. 17 4.2 6DB BANDWIDTH MEASUREMENT ....................................................................................... 28 4.2.1 LIMITS OF 6DB BANDWIDTH MEASUREMENT ........................................................... 28 4.2.2 TEST INSTRUMENTS ..................................................................................................... 28 4.2.3 TEST PROCEDURE ........................................................................................................ 28 4.2.4 DEVIATION FROM TEST STANDARD .........................................................................…

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Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 1 of 3 Report Version A Reference No.: 2606WDG0261 SET-UP FOR RADIATED EMISSION TEST Frequency Range< 30MHz~1GHz > Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 2 of 3 Report Version A Reference No.: 2606WDG0261 Frequency Range< Above 1GHz > Bureau Veritas Shenzhen Co., Ltd. Dongguan Branch No. 96, Guantai Road (Houjie Section), Houjie Town, Dongguan City, Guangdong Province. 523942. People’s Republic of China. Tel.: +86 769 8998 2098 Fax: +86 769 8593 1080 Email: [email protected] Page 3 of 3 Report Version A Reference No.: 2606WDG0261 SET-UP FOR RF PORT CONDUCTED MEASUREMENT EUT