2AHN6-MSWS135Ergo Wireless Mouse-ASST

For Ergo Wireless Mouse-ASST This equipment complies with FCC radiation exposure limits set forth for an uncontrolled For Ergo Wireless Mouse-dongle This equipment complies with FCC radiation exposure limits set forth for an uncontrolled FCC ID: 2AHN6-MSWS135 FCC ID: 2AHN6-DE14 environment. environment.

BytechNYInc. 25 85 We st 13 th Str eet,Brooklyn NY11 223 ,Ne w Yo rk, Un ited Sta tes Te l: 00 1- 71 8-449-3700 |Fa x: 00 1- 71 8-449-2488 E- mail: so [email protected] Date: 2026-01-27 To:FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 We, Bytech NY Inc. hereby declare that： Product Name: Ergo Wireless Mouse-ASST Model No.: BY-MS-WS-135-AC, BY-MS-WS-135-BL, BY-MS-WS-135-PK, BY-MS-WS-135-BK FCC ID: 2AHN6-MSWS135 For marketing purpose, this product only supports 2.4G SRD (Frequency Range: 2402-2479MHz; Modulation Technique: GFSK). The other functions was disabled to use by manufacturer in the software, the end user has no capability to activate it. . SincerelyYours, Signature: PrintedName:SoliMizrahi Title:President

CFR47§2.911(d)(5)(i)AttestationLetter BytechNYInc. 2585West13thStreet,BrooklynNY11223,New York,UnitedStates Tel:001-718-449-3700|Fax:001-718-449-2488 E-mail:[email protected] AttestationLetter Date:2026-01-27 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(i)Filing FCCID:2AHN6-MSWS135 BytechNYInc.certifiesthattheequipmentforwhichauthorizationissought,isnot“covered” equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection2.903ofthe FCCrules. Sincerely, Signature: PrintedName:SoliMizrahi Title:President

CFR47§2.911(d)(5)(ii)AttestationLetter BytechNYInc. 2585West13thStreet,BrooklynNY11223, NewYork,UnitedStates Tel:001-718-449-3700|Fax:001-718-449-2488 E-mail:[email protected] AttestationLetter Date:2026-01-27 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(5)(ii)Filing FCCID:2AHN6-MSWS135 BytechNYInc.certifiesthatasofthedateofthefilingoftheapplication,theapplicantisnot identifiedontheCoveredListasanentityproducing“covered”equipment. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoesnotutilize cyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofitssuccessorsand assignees,whichisalsoonthe“coveredlist”. Sincerely, Signature: PrintedName:SoliMizrahi Title:President

U.S.AGENTLETTEROFATTESTATION Date:2026-01-27 FEDERALCOMMUNICATIONSCOMMISSION AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Ref:AttestationStatementsCFR47§2.911(d)(7)Filing FCCID:2AHN6-MSWS135 BytechNYInc.certifiesthat,asofthedateofthefilingoftheapplication,BytechNYInc. isourdesignatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. BytechNYInc.acceptstomaintainanagentfornolessthanoneyearafterthegranteehas terminatedallmarketingandimportationortheconclusionofanyCommission-related proceedinginvolvingtheequipment. BytechNYInc.accepts,asofthedateofthefilingoftheapplication,theobligationofthe designatedU.S.agentforserviceofprocessfortheabovereferencedFCCID. DesignatedU.S.AgentandApplicantInformation: Name:BytechNYInc. Address:2585West13thStreet,BrooklynNY11223,NewYork,UnitedStates FRN:0025388125 Tel.:001-718-449-3700 Email:[email protected] Signedby(printedname):SoliMizrahi Signature:

BytechNYInc. 2585West13thStreet,BrooklynNY11223,New York,UnitedStates Tel:001-718-449-3700|Fax:001-718-449-2488 E-mail:[email protected] FCCAuthorization Date:2026-01-27 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:AgentAuthorization Towhomitmayconcern: We,BytechNYInc.,theundersigned,herebyauthorizeBayAreaComplianceLaboratoriesCorp. (Shenzhen)toactonitsbehalfinallmattersrelatingtoapplicationforEquipmentauthorization,including thesigningofalldocumentsrelatingtothesematters.AllactscarriedoutbyBayAreaCompliance LaboratoriesCorp.(Shenzhen)onourbehalfshallhavethesameeffectasourownaction. We,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits,thatincludes FCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21U.S.C.862. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant. SincerelyYours, Signature: PrintedName:SoliMizrahi Title:President

BytechNYInc. 2585West13thStreet,BrooklynNY11223,New York,UnitedStates Tel:001-718-449-3700|Fax:001-718-449-2488 E-mail:[email protected] FCCConfidentialAuthorization Date:2026-01-27 FEDERALCOMMUNICATIONSCOMMISSIONS AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 Subject:ConfidentialityRequestregardingapplicationforcertificationof FCCID:2AHN6-MSWS135 InaccordancewithSections0.457and0.459oftheCommission’sRules, BytechNYInc.herebyrequestslong-termconfidentialtreatmentofinformation accompanyingthisapplicationasoutlinedbelow: BlockDiagram Schematics OperationDescription Theabovematerialscontainproprietaryandconfidentialinformationnot customarilyreleasedtothepublic.Thepublicdisclosureofthesematerials providesunjustifiedbenefitstoitscompetitorsinthemarket. SincerelyYours, Signature: PrintedName:SoliMizrahi Title:President

Bytech NY Inc. 2585 West 13th Street,Brooklyn NY 11223, New York, United States Tel: 001-718-449-3700 | Fax: 001-718-449-2488 E- mail: [email protected] Product Similarity Declaration Date: 2026-01-27 To: FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Bytech NY Inc., hereby declare that we have a product named as Ergo Wireless Mouse-ASST (Model: BY-MS-WS-135-AC, FCC ID: 2AHN6-MSWS135) was tested by Bay Area Compliance Laboratories Corp. (Shenzhen). For our marketing purpose, we would like to list a series model (BY-MS-WS-135-BL, BY-MS-WS-135-PK, BY-MS- WS-135-BK) on reports and certificate, all the models are identical in schematics. Only the model number and colors are different. No other changes are made on them. The BY-MS-WS-135-AC includes three colors corresponding to BY-MS-WS-135-BL, BY-MS-WS-135-PK, and BY-MS-WS-135-BK See the picture below for detailed appearance differences: Model Model colors BY-MS-WS-135-AC BY-MS-WS-135-BL BY-MS-WS-135-PK Bytech NY Inc. 2585 West 13th Street,Brooklyn NY 11223, New York, United States Tel: 001-718-449-3700 | Fax: 001-718-449-2488 E- mail: [email protected] BY-MS-WS-135-BK 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: Printed Name: Soli Mizrahi Title: President

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 1 of 10 EUT EXTERNAL PHOTOGRAPHS Model: BY-MS-WS-135-AC Model: BY-MS-WS-135-BL Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 2 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 3 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 4 of 10 Model: BY-MS-WS-135-PK Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 5 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 6 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 7 of 10 Model: BY-MS-WS-135-BK Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 8 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 9 of 10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-EXP Page 10 of 10

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: 2601P41703E-RF FCC ID LABEL AND LOCATION FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 1 of 7 EUT INTERNAL PHOTOGRAPHS Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 2 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 3 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 4 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 5 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 6 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-INP Page 7 of 7 ANT

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00 TR-EM-RF041 Page 10 of 45 Version 3.0 §1.1307 (b) (3) &§2.1093 - RF EXPOSURE Applicable Standard According to FCC §2.1093 and §1.1307(b)(3)(i)(B) According to KDB 447498 D04 Interim General RF Exposure Guidance v01 This exemption is applicable to the frequency range between 300 MHz and 6 GHz, with test separation distances between 0.5 cm and 40 cm, and for all RF sources in fixed, mobile, and portable device exposure conditions. Accordingly, a RF source is considered an RF exempt device if its available maximum time averaged (matched conducted) power or its effective radiated power (ERP), whichever is greater, are below a specified threshold. This exemption threshold was derived based on general population 1-g SAR requirements and is detailed in Appendix C. Either SAR-based or MPE-based exemption may be considered for test exemption for fixed, mobile, or portable device exposure conditions; therefore, the contributions from each exemption in conjunction with the measured SAR (Evaluated term) shall be used to determine exemption for simultaneous transmission according to Formula (C.1) [repeated from § 1.1307(b)(3)(ii)(B)]. SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00 TR-EM-RF041 Page 11 of 45 Version 3.0 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00 TR-EM-RF041 Page 12 of 45 Version 3.0 Measurement Result For worst case: The Greater of ERP Radio Frequency (MHz) Distance (mm) P th (mW) Maximum E-Field (dBuV/m@3m) Maximum ERP (dBm) dBmmW SRD2402-2479 52.7298.010.660.661.16 Note: 1. antenna gain # was declared and provided by the applicant 2. EIRP = E-Field – 95.2 @3m, ERP = EIRP - 2.15 Result: Compliant

Note: 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. 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. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF041 Page 1 of 45 Version 3.0 TEST REPORT Applicant Name:Bytech NY lnc. Address:2585 West 13th Street, Brooklyn NY 11223, New York, United States Report Number:2601P41703E-RF-00 FCC ID:2AHN6-MSWS135 Test Standard (s) FCC PART 15.249 Sample Description Product Type:Ergo Wireless Mouse-ASST Model No.:BY-MS-WS-135-AC Multiple Model(s) No.:BY-MS-WS-135-BL, BY-MS-WS-135-PK, BY-MS-WS-135-BK Trade Mark:N/A Date Received:2026/01/16 Issue Date:2026/02/13 Test Result:Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By:Approved By: Allen BaiNancy Wang RF EngineerRF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00 TR-EM-RF041 Page 2 of 45 Version 3.0 TABLE OF CONTENTS DOCUMENT REVISION HISTORY ..........................................................................................................................3 GENERAL INFORMATION ........................................................................................................................................4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)......................................................................................4 OBJECTIVE ....................................................................................................................................................................4 TEST METHODOLOGY....................................................................................................................................................4 MEASUREMENT UNCERTAINTY .....................................................................................................................................5 TEST FACILITY ..............................................................................................................................................................5 SYSTEM TEST CONFIGURATION ...........................................................................................................................6 DESCRIPTION OF TEST CONFIGURATION .......................................................................................................................6 EUT EXERCISE SOFTWARE ...........................................................................................................................................6 EQUIPMENT MODIFICATIONS ........................................................................................................................................6 SUPPORT EQUIPMENT LIST AND DETAILS .....................................................................................................................6 SUPPORT CABLE DESCRIPTIONS ....................................................................................................................................6 BLOCK DIAGRAM OF TEST SETUP .................................................................................................................................7 SUMMARY OF TEST RESULTS ................................................................................................................................8 TEST EQUIPMENT LIST ............................................................................................................................................9 §1.1307 (B) (3) &§2.1093 - RF EXPOSURE..................................................................................................................10 APPLICABLE STANDARD .............................................................................................................................................10 MEASUREMENT RESULT..............................................................................................................................................12 FCC§15.203 - ANTENNA REQUIREMENT.............................................................................................................13 APPLICABLE STANDARD .............................................................................................................................................13 ANTENNA CONNECTOR CONSTRUCTION .....................................................................................................................13 FCC§15.205, §15.209 & §15.249(A)(C)(D) - RADIATED EMISSIONS .................................................................14 APPLICABLE STANDARD .............................................................................................................................................14 EUT SETUP .................................................................................................................................................................14 EMI TEST RECEIVER & SPECTRUM ANALYZER SETUP ...............................................................................................16 TEST PROCEDURE............................…

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Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00-TSP Page 1 of 2 TEST SETUP PHOTOGRAPHS Radiated Emissions View (Below 30MHz) Radiated Emissions View (Below 1 GHz) Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: 2601P41703E-RF-00-TSP Page 2 of 2 Radiated Emissions View (1-18 GHz) Radiated Emissions View (18-25 GHz)