ELVATRYATransceiver

Shielding le er 2024-7-11 FED E RAL COMMUNICATIONS COMMISSIONS Authorizaon and Evaluaon Division 7435 Oakland Mills Road Columbia, MD 21046 Subject:shielding le-er To whom it may concern: Our product Transceiver, model: PREBT, FCC ID: ELVATRYA, for marketing purpose, this product only supports bluetooth LE 1M. The other functions, bands and modes was disabled to use by manufacturer in the software, the end user has no capability to activate it. Sincerely Yours, Client’s signature Client’s name/ tle Jason Wang/ Senior Manager Contact informaon/address No. 167, Ln. 235, Baoqiao Rd., Xindian Dist., New Taipei City 23145, Taiwan

CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2024/7/11 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: ELV ATRYA NUTEK CORPORATION (“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. Sincerely, Signature Contact Person: Jason Wang Title: Senior Manager Company Name & Address: NUTEK CORPORATION/ No. 167, Ln. 235, Baoqiao Rd., Xindian Dist., New Taipei City 23145, Taiwan

CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2024/7/11 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: ELV ATRYA NUTEK CORPORATION (“the applicant”) 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. Sincerely, Signature Contact Person: Jason Wang Title: Senior Manager Company Name & Address: NUTEK CORPORATION/ No. 167, Ln. 235, Baoqiao Rd., Xindian Dist., New Taipei City 231 45, Taiwan

FCC Authorization Date: 2024-07-11 FEDERAL COMMUNICATIONS COMMISSIONS A uthorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We NUTEK CORPORATION, the undersigned, Hereby authorizes Central Research Technology Co. 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 Central Research Technology Co. 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 ―――――――――――――――― Name/ title : Jason Wang/ Senior Manager Contact information/address : No.167, Lane 235, Bauchiau Rd., Xindian District, New Taipei City 23145, Taiwan QA-FR-170-B7/29/2014

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FCC Test Report Report No.:RM- N150-2406-317 CENTRAL RESEARCH TECHNOLOGY CO. Page : 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei, Taiwan, 104, R.O.C. TEL. : 886-2-25872719 FAX. : 886-2-25850364 1/2 RF Exposure Evaluation Report Equipment under Test : Transceiver Model No. : PREBT FCC ID : ELVATRYA Applicant : Nutek Corporation Address : No.167, Lane 235, Bauchiau Rd., Xindian District,New Taipei City, Taiwan Date of Receipt : July 1, 2024 Date of Report : July 18, 2024 Prepared by Central Research Technology Co. 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan This report shall not be reproduced, except in full, without written approval of Central Research Technology Co.. It may be duplicated completely in its entirely for legal use with the permission of the applicant. The test result in this report is based on the information provided by manufacturer and applies only to the sample tested. FCC Test Report Report No.:RM- N150-2406-317 CENTRAL RESEARCH TECHNOLOGY CO. Page : 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei, Taiwan, 104, R.O.C. TEL. : 886-2-25872719 FAX. : 886-2-25850364 2/2 1 Requirement for Compliance Formula: S=Power Density(mW/cm 2 ) P= power input to antenna(mW) G=Antenna Gain d= Distance(cm) Frequency Range (MHz) Maximium Power Including Tune-up tolerance (dBm) Antenna Gain (dBi) Distance (cm) Power Density (mW/cm 2 ) Limit (mW/cm 2 ) 2412~2462 -3.1 -4.09 20 0.00004 1 2 Result According to result, the device meet FCC MPE at 20cm distance.

MIFA Antenna Specification ITEMAntenna Spec. Model Name2.4GHz MIFA PCB Antenna Center Frequency HorizontalVertical 2400MHz2450MHz2500MHz2400MHz2450MHz2500MHz -4.09 dBi-5.82 dBi-6.51 dBi-15.11 dBi-14.91dBi-18.73 dBi MAX Gain-4.09 dBi PolarizationHorizontal and Vertical Antenna LengthReports Table 1 ManufactureNutek Corporation Assembly Drawing Table 1:Antenna Dimensions Referencemm L14.50 L22.74 L32.65 L41.76 L54.7 L64.9 W10.9 W20.5 D11.5 D21.3 Horizontal: 2400 MHz、 2450 MHz、 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div 、 Frequency (MHz) Gain(dB) MaxMinAvg 2400-4.09-25.32-12.32 2450-5.82-30.68-12.75 2500-6.51-35.91-13.51 Vertical: 2400 MHz、 2450 MHz、 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency (MHz) Gain(dB) MaxMinAvg 2400-15.11-30.48-21.50 2450-14.91-35.37-21.86 2500-18.73-34.28-23.27

FCC RF Test Report Report No.: RF-N150-2406-317 CENTRAL RESEARCH TECHNOLOGY CO. Page : 1/54 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 FCC RF Test Report For Transceiver Trade Name : VOXX Model Number : PREBT FCC ID : ELVATRYA Date of Receipt : July 1, 2024 Date of Report : July 18, 2024 Prepared for Nutek Corporation No.167, Lane 235, Bauchiau Rd., Xindian District,New Taipei City, Taiwan Prepared by Central Research Technology Co. 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan This report shall not be reproduced, except in full, without written approval of Central Research Technology Co.. It may be duplicated completely in its entirely for legal use with the permission of the applicant. The test result in this report is based on the information provided by manufacturer and applies only to the sample tested. FCC RF Test Report Report No.: RF-N150-2406-317 CENTRAL RESEARCH TECHNOLOGY CO. Page : 2/54 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 Verification of Compliance Equipment under Test : Transceiver Model No. : PREBT FCC ID : ELVATRYA Applicant : Nutek Corporation Address : No.167, Lane 235, Bauchiau Rd., Xindian District,New Taipei City, Taiwan Applicable Standards : 47 CFR part 15, Subpart C ANSI C63.10:2020 Date of Testing : July 9 ~ 11, 2024 Deviation : The method, configuration and arrangement of the tests are following the requirement of customer and the applicable standards cited above. Condition of Test Sample : Mass Production We, Central Research Technology Co., hereby certify that one sample of the designated product was tested in our facility during the period mentioned above. The test records, data evaluation and Equipment Under Test (EUT) configurations shown in the present report are true and accurate representation of the measurements of the sample’s RF characteristics under the conditions herein specified. The test results show that the EUT as described in the present report is in compliance with the requirements set forth in the standards mentioned above and apply to the tested sample identified in the present report only. The test report shall not be reproduced, except in its entirety, without the written approval of Central Research Technology Co. FCC RF Test Report Report No.: RF-N150-2406-317 CENTRAL RESEARCH TECHNOLOGY CO. Page : 3/54 11, Lane 41, Fushuen St., Jungshan Chiu, Taipei 104, Taiwan TEL. : 886-2-25872719 FAX. : 886-2-25850364 Contents 1 General Description .............................................................................................. 5 1.1 General Description of EUT .................................................................................. 5 1.2 Applied standards ................................................................................................. 7 1.3 Test result ............................................................................................................ 10 1.4 The Support Units ............................................................................................... 11 1.5 Layout of Setup ................................................................................................... 11 1.6 Test Instruments .................................................................................................. 12 1.7 Test Capability ..................................................................................................... 15 1.8 Measurement Uncertainty .................................................................................. 17 2 6dB Bandwidth .................................................................................................... 18 2.1 Applied standard ................................................................................................. 18 2.2 Measurement Procedure .................................................................................... 18 2.3 Test configuration ............................................................................................... 18 2.4 Test Data .............................................................................................................. 19 3 Maximum Peak Output Power ..................................... ....................................... 21 3.1 Applied standard ................................................................................................. 21 3.2 Measurement Procedure .................................................................................... 21 3.3 Test configuration ............................................................................................... 21 3.4 Test Data .............................................................................................................. 22 4 Power Spectral Density ...................................................................................... 23 4.1 Applied standard ................................................................................................. 23 4.2 Measurement Procedure .................................................................................... 23 4.3 Test configuration ............................................................................................... 23 4.4 Test Data .............................................................................................................. 24 5 Conducted Spurious emission .......................................................................... 26 5.1 Applied standard ................................................................................................. 26 5.2 Measurement Procedure .................................................................................... 26 5.3 Test configuration ............................................................................................... 26 5.4 Test Data ..............................................................................…

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