V4P-GM335MECHANICAL KEYBOARD

VISHTEC LLC

DongguanNewmenElectronicsTechnologyCo.,Ltd 2023-07-13 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:V4P-GM335) [DongguanNewmenElectronicsTechnologyCo.,Ltd](“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Sincerely, GerogeHe Manager DongguanNewmenElectronicsTechnologyCo.,Ltd No.5,XifaRoad,LinVillage,TangxiaTown,Dongguan,Guangdong,China DongguanNewmenElectronicsTechnologyCo.,Ltd 2023-07-13 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:V4P-GM335) [DongguanNewmenElectronicsTechnologyCo.,Ltd](“theapplicant”)certifiesthat,as ofthedateofthefilingoftheapplication,theapplicantisnotidentifiedontheCovered Listasanentityproducing“covered”equipment. Sincerely, GerogeHe Manager DongguanNewmenElectronicsTechnologyCo.,Ltd No.5,XifaRoad,LinVillage,TangxiaTown,Dongguan,Guangdong,China

DongguanNewmenElectronicsTechnologyCo.,Ltd 2023-07-13 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:LETTEROFAGENTAUTHORIZATION ToWhomItMayConcern: We,theundersigned,herebyauthorizeDongGuanAnciElectronicTechnologyCo.,Ltd.toact onourbehalfinallmattersrelatingtoapplicationforequipmentauthorization,includingthe signingofalldocumentsrelatingtothesematters. Wealsoherebycertifythatnopartytotheapplicationauthorizedhereunderissubjecttothe denialofbenefits,includingFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseAct of1988,21U.S.C.853(a). Thisagreementexpiresoneyearfromthecurrentdate. Sincerely, GerogeHe Manager DongguanNewmenElectronicsTechnologyCo.,Ltd No.5,XifaRoad,LinVillage,TangxiaTown,Dongguan,Guangdong,China

DongguanNewmenElectronicsTechnologyCo.,Ltd 2023-07-13 EurofinsElectricalandElectronicTestingNA,Inc. 914WestPatapscoAvenue Baltimore,MD21230 RE:CONFIDENTIALITYREQUESTFOR(EUTName:MECHANICALKEYBOARD /Model:GM335/FCCID:V4P-GM335) ToWhomItMayConcern: Thisletterservesasanofficialrequestforconfidentialityundersections0.457and0.459 ofCFR47.Wehaverequestedthatthe(BlockDiagram,OperationalDescription,Schematics)required tobesubmittedwiththisapplicationbepermanentlywithheldfrompublicreview. Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedtothepublic.The publicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovideunjustifiedbenefitstoitscompetitors. Pleasecontactmeifthereisanyinformationyoumayneed. Sincerely, GerogeHe Manager DongguanNewmenElectronicsTechnologyCo.,Ltd No.5,XifaRoad,LinVillage,TangxiaTown,Dongguan,Guangdong,China

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RF EXPOSURE EVALUATION EUT Specification EUT MECHANICAL KEYBOARD Model Number GM335 FCC ID V4P-GM335 Antenna gain (Max) 2.24dBi Operation Frequency 2402-2480MHz Input Rating DC 5V, Battery 3.7V Classification Per Stipulated Test Standard §15.247(i), §2.1093 Modulation GFSK Max. output power 2.45dBm(0.0018W) Test Requirement: According to §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. 2.4G DTS: According to KDB 447498, no stand-alone required for BT antenna, and no simultaneous SAR measurement is required. Signature: Tiger Xu Date: 2023-07-06 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2402 GFSK 2.45 2±1 3 0.618596 3 2440 GFSK 1.16 1±1 2 0.495136 3 2480 GFSK -0.09 0±1 1 0.396512 3

TRF No.: 01-R001-3A-2.4G TRF Originator: GTG TRF Date: 2022-06-29 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT FCC PART 15 SUBPART C REQUIREMENT OF MECHANICAL KEYBOARD Model No.: GM335 Trademark: N/A FCC ID: V4P-GM335 Report No.: E01A23040425F00101 Issue Date: July 08, 2023 Prepared for Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Electronic Technology Co., Ltd. 1 of 52 Report No.: E01A23040425F00101 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. VERIFICATION OF COMPLIANCE Applicant: Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Manufacturer: Dongguan Newmen Electronics Technology Co., Ltd No.5, Xifa Road, Lin Village, Tangxia Town, Dongguan, Guangdong, China Product Description: MECHANICAL KEYBOARD Trade Mark: N/A Model Number: GM335 Sample number: A23040425 001 We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2022). Date of Test : June 17, 2023 to July 05, 2023 Prepared by : Duke Liu/Editor Reviewer & Authorized Signer : Tiger Xu/ Supervisor 2 of 52 Report No.: E01A23040425F00101 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A23040425F00101 3 of 52 Report No.: E01A23040425F00101 TRF No.: 01-R001-3A-2.4G Global Testing , Great Quality. Table of Contents 1. GENERAL INFORMATION ............................................................................................................ 5 1.1 PRODUCT DESCRIPTION .............................................................................................................. 5 1.2 TEST METHODOLOGY .................................................................................................................. 5 2. TEST FACILITY ................................................................................................................................ 6 3. DESCRIPTION OF TEST MODES ................................................................................................ 7 4. SUMMARY OF TEST RESULTS ................................................................................................... 9 6DB BANDWIDTH MEASUREMENT ............................................................................................... 9 5. TEST SYSTEM UNCERTAINTY .................................................................................................. 10 6. CONDUCTED EMISSIONS TEST ............................................................................................... 11 6.1MEASUREMENT PROCEDURE: ..................................................................................................... 11 6.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 11 6.3MEASUREMENT EQUIPMENT USED: ............................................................................................. 11 6.4 CONDUCTED EMISSION LIMIT ..................................................................................................... 11 6.5 MEASUREMENT RESULT: ........................................................................................................... 11 7. RADIATED EMISSION TEST ....................................................................................................... 15 7.1MEASUREMENT PROCEDURE ...................................................................................................... 15 7.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 17 7.3MEASUREMENT EQUIPMENT USED: ............................................................................................. 18 7.4 RADIATED EMISSION LIMIT .......................................................................................................... 19 7.5 MEASUREMENT RESULT .......................................................................................................... 20 7.6 RADIATED MEASUREMENT PHOTOS: ........................................................................................... 26 8. 6DB BANDWIDTH MEASUREMENT ......................................................................................... 27 8.1MEASUREMENT PROCEDURE ...................................................................................................... 27 8.2TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................. 27 8.3 MEASUREMENT EQUIPMENT USED: ............................................................................................ 27 8.4 LIMIT ........................................................................................................................................ 27 8.5MEASUREMENT RESULTS: .......................................................................................................... 27 9. MAXIMUM PEAK OUTPUT POWER TEST .............................................................................. 28 9.1MEASUREMENT PROCEDURE ...................................................................................................... 30 9.2TEST SET-UP (BLOCK DIAGRAM OF CONF…

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