2AYV7XF-638Walkie Talkies

FCC Radiation Exposure Statement : This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. The SAR was tested for the device in the head and body worn mode. And it can meet the SAR limit of FCC. ISEDCWarningThisdevicecomplieswithInnovation,Science,andEconomicDevelopment Canadalicence‐ exemptRSSstandard(s).Operationissubjecttothefollowingtwoconditions: (1)thisdevicemaynotcauseinterference,and (2)thisdevicemustacceptanyinterference,includinginterferencethatmaycauseundesir edoperationofthedevice. LeprésentappareilestconformeauxCNRd'Innovation,SciencesetDéveloppementécono miqueCanadaapplicablesauxappareilsradioexemptsdelicence.L'exploitationestautoris éeauxdeuxconditionssuivantes: (1)l'appareilnedoitpasproduiredebrouillage,et (2)l'utilisateurdel'appareildoitacceptertoutbrouillageradioélectriquesubi,mêmesilebr ouillageestsusceptibled'encompromettrelefonctionnement. ISEDCRadiationExposureStatement Forbodywornoperation,thismodeldevicehasbeentestedandmeetstheISEDRFexposur eguidelineswhenusedwithanaccessorydesignatedforthisproductorwhenusedwithan accessorythatContainsnometalandthatpositionsofthefaceupminimumdistanceis25 mm. AnyChangesormodificationsnotexpresslyapprovedbythepartyresponsibleforcomplian cecouldvoidtheuser’sauthoritytooperatetheequipment. Pourlecorps,cemodèled’appareilaététestéetadaptéàlaRFrenforcéeLignesdirectrices relativesàl’expositionlorsqu’ellessontutiliséesavecunaccessoirepourceproduitoulors qu’ellessontutiliséesaveccelui‐ciUnacces‐ soirenecontenantpasdemétaletdontladistanceminimaledelafaceestde25mm. Toutchangementoumodiÿcationnonexpressémentapprouvéparlapartieresponsablede laconformitél'équipement. Yourwirelesshandheldportabletransceivercontainsalowpowertransmitter.Whentheta lkbuttonispushed,itsendsoutradiofrequency(RF)signals.Thedeviceisauthorizedtoop erateatadutyfactornottoexceed50%. Votreémetteur‐ récepteurportablesansfilcontientunémetteurdefaiblepuissance.Lorsqueleboutonde conversationestenfoncé,ilenvoiedessignauxderadiofréquence(RF).L'appareilestautori séàfonctionneravecunfacteurd'utilisationnedépassantpas50%.

Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China, 518111 Tel: +86 13802207569 Mail: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter A ttestation Letter Date: 2024-01-22 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 R ef: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing F CC ID:2AYV7XF-638 S henzhen yizhongge Electronic Co., Ltd certifies that the equipment for which authorization is soughtis not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. S incerely, Si gnature C ontact person: Yong Huang Title: Manager

Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China, 518111 Tel: +86 13802207569 Mail: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter A ttestation Letter Date: 2024-01-22 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 R ef: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing F CC ID:2AYV7XF-638 S henzhen yizhongge Electronic 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. S incerely, Si gnature C ontact person: Yong Huang Title: Manager

Shenzhen yizhongge Electronic Co., Ltd Address : 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China, 518111 Tel: +86 13802207569 Mail: [email protected] QA-FR-170-B FCC Authorization Date: 2024-01-22 F EDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 S ubject: Agent Authorization T o whom it may concern: W e, Shenzhen yizhongge Electronic Co., Ltd hereby authorize Bay Area Compliance Laboratories Corp.(Dongguan) 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 Bay Area Compliance Laboratories Corp.(Dongguan) on our behalf shall have the same effect as our own action. W e, Shenzhen yizhongge Electronic Co., Ltd 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. S incerely Yours, S ignature C ontact person: Yong Huang Title: Manager

Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China, 518111 Tel: +86 13802207569 Mail: [email protected] QA-FR-171-A FCC Confidential Authorization Date: 2024-01-22 F EDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 S ubject: Confidentiality Request regarding application for certification of FCC ID: 2AYV7XF-638 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen yizhongge Electronic Co., Ltd hereby requests long-term confidential treatment of information accompanying this application as outlined below: •B lock Diagram •Schematics •Operation Description •BOM •Tune up procedure T he 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. S incerely Yours, S ignature C ontact person: Yong Huang Title: Manager

Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghustreet, Longgang District, Shenzhen, China, 518111 Tel: +86 13802207569 Mail: [email protected] Product Similarity Declaration Date: 2024-01-22 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 D ear Sir/Madam, W e, Shenzhen yizhongge Electronic Co., Ltd hereby declare that we have a product Walkie Talkies, FCC ID: 2AYV7XF-638, model XF-638 was tested by Bay Area Compliance Laboratories Corp.(Dongguan). For our marketing purpose, we would like to list series (model: YG-817, YG-819) on reports and certificate. They have the same circuit, the difference between them are model name. W e confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. S incerely Yours, S ignature: C ontact person: Yong Huang Title: Manager

Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-EXP Page 1 / 3 EUT EXTERNAL PHOTOS Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-EXP Page 2 / 3 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-EXP Page 3 / 3

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Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 1 / 7 EUT INTERNAL PHOTOS Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 2 / 7 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 3 / 7 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 4 / 7 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 5 / 7 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 6 / 7 Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-INP Page 7 / 7 Antenna

SAR TEST REPORT Applicant: Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China FCC ID: 2AYV7XF-638 Product Name: Walkie Talkies Model Number: XF-638 Multiple Numbers: YG-817, YG-819 Standard(s): 47 CFR Part 2(2.1093) The above device has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR240100948-20 Date Of Issue: 2024-02-21 Reviewed By: Karl Gong Title: SAR Engineer Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR240100948-20 Page 2 of 35 SAR TEST RESULTS SUMMARY Operation Frequency Bands Highest Reported 1g SAR (W/kg) Limits (W/kg) Head Face Up (Gap 25mm) Body-Worn (Gap 0mm) PTT(462.5500-467.7125MHz) 0.150.181.6 Maximum Simultaneous Transmission SAR Items Head Face Up (Gap 25mm) Body-Worn (Gap 0mm) Limits Sum SAR(W/kg) N/A N/A 1.6 SPLSR N/A N/A 0.04 EUT Received Date: 2024/01/02 Tested Date: 2024/01/04 Tested Result: Pass China Certification ICT Co., Ltd (Dongguan) Report No.: CR240100948-20 Page 3 of 35 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. 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 may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR240100948-20 Page 4 of 35 CONTENTS DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR DEVICE UNDER TEST (EUT) ............................................................... 6 1.2 TEST SPECIFICATION, METHODS AND PROCEDURES ........................................................................ 7 1.3 SAR LIMITS .......................................................................................................................................... 8 2. SAR MEASUREMENT SYSTEM ............................................................................................ 9 3. EQUIPMENT LIST AND CALIBRATION .......................................................................... 17 3.1 EQUIPMENTS LIST & CALIBRATION INFORMATION ....................................................................... 17 4. SAR MEASUREMENT SYSTEM VERIFICATION ........................................................... 18 4.1 LIQUID VERIFICATION ...................................................................................................................... 18 4.2 SYSTEM ACCURACY VERIFICATION ................................................................................................. 19 4.3 SAR SYSTEM VALIDATION DATA ............................................................................................. 20 5. EUT TEST STRATEGY AND METHODOLOGY .............................................................. 21 5.1 TEST POSITIONS FOR FRONT-OF-FACE CONFIGURATIONS .............................................................. 21 5.2 TEST POSITIONS FOR BODY-WORN AND OTHER CONFIGURATIONS ............................................... 22 5.3 TEST DISTANCE FOR SAR EVALUATION .......................................................................................... 22 5.4 SAR EVALUATION PROCEDURE ....................................................................................................... 23 6. CONDUCTED OUTPUT POWER MEASUREMENT ........................................................ 24 6.1 TEST PROCEDURE .............................................................................................................................. 24 6.2 MAXIMUM TARGET OUTPUT POWER ............................................................................................... 24 6.3 TEST RESULTS: .................................................................................................................................. 24 7. SAR MEASUREMENT RESULTS ........................................................................................ 26 7.1 SAR TEST DATA ................................................................................................................................ 26 8. SAR MEASUREMENT VARIABILITY ............................................................................... 27 9. SAR PLOTS .............................................................................................................................. 28 APPENDIX A MEASUREMENT UNCERTAINTY ................................................................ 32 APPENDIX B EUT TEST POSITION PHOTOS...................................................................... 33 APPENDIX C CALIBRATION CERTIFICATES ..................................................…

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APPENDIX C CALIBRATION CERTIFICATES DIPOLE CALIBRATION CERTIFICATES TE TE Eq CO No Me Ex con RE Pa Th Me DUT Co Descrip Mo Manufact Certificate N EST SPECIFIC Specificat Specificat EST PARAME Device Receiv quipment Use Item: Item: Cal Item: Item: Item: OMMENTS, OPI one easurement Unce xpanded uncertain nfidebce = 95%) ESULTS ass his measurement w easurements are t M ode: ADK ption Antenna - odel D450V3 turer SPEAG No.: D450V3- CATIONS tion: WP 438 S tion: ETERS ved In Tolerance d to perform M Network Analy libration/Verificat Terminator INIONS and INT ertainty nty U (level of was a calibration traceable to the in Measure B Measur - Dipole 1096_Nov22 SAR Dipole Verif : Yes Measure yzer tion - Kit ERPRETATIONS Probab Distribu Normal( verification. (Ins nternational Syste By: re Repor fication Calibrated F Identifier:N Identifier:N Identifier:N Identifier: Identifier: S bility ution I (k=2) strument paramet em of Units (SI) v CALIB Nam Karl G 1 / 2 rt for An Frequency Range NAM Model NAM Model ANA Model Model Model Impedance (dB) ers are within tol via NIST BRATION DATA me Gong ntenna ‐ e:N/A l:8753B l:85032F l:85032-1000 l: l: Insertion Lo lerances.) AAT TA C H E D Func SAR En ‐ Dipole Next Last Cal: Last Cal: 03Last Cal: Last Cal: Last Cal: ss（dB） Va l u 0 ction ngineer e Cal Date: Temperature: Humidity: Pressure Tester: Version: Version: Cal Due Date: 2023/10/17 NCR 2023/4/29 ue (dB) Value 0.93 Sig 2023/11/ 23.6°C 58% 101.7 kP Karl Gon 2020 - Re 2024/11/ Cal Due:202 Cal Due: Cal Due:20 Cal Due: Cal Due: e (+/- %) gnaturn 15 Pa ng ev 0 15 23/10/16 NCR 024/4/28 Per dipo rem a The fro m H Ph FCC KDB 86 les when it i ained stable ac 1. The meas certificat 2. The retur required 3. The mea s the previ following di p m calibration d Head hantom 20 20 Dip 65664 D01, c is demonstrat ccording to th sured SAR do te. rn-loss does no 20 dB minimu surement of re ous measurem pole was chec date. 022 Value (dB 023 Value (dB Devation (% Limit (% Limit (< dB Result pole Cali calibration int ted that the S he following re oes not deviate ot deviate mo um return-los eal or imagina ment. cked to pass th Return L B) -22.0 B) -19.4 %) 11.8 %) 20 B) -20 ts Pass 2 / 2 ibration tervals of up SAR target, im equirements. e more than 10 re than 20% f s requirement ary parts of im he above 3 re Loss 2022 V 2023 V Deva Lim Re n Extens to 3 years m mpedance an 0% from the t from the previ t. mpedance does equirements to Value (Ω) Value (Ω) ation (Ω) mit (Ω) esults sion may be consid nd return loss target on the c ious measurem s not deviate m o have 3-year Real Impedence 56.1 53.6 -2.5 5 Pass dered for refer s of a dipole calibration ment and meet more than 5Ω r calibration p Imagina Impeden -5.9 -6.1 -0.2 5 Pass rence have ts the from period ary nce

ཙ㓯㿴ṬҖ Antenna Datasheet สᵜؑ᚟ General information 䙐୶ࡦ Manufacturer Shenzhen Yu Sheng Electronics Co., LTD Address: 1235-1236, Building B, Qinghu Science Park, Qingxiang Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen ཙ㓯රਧ Model Name YS230228 ᰕᵏ Date 2023.12.28 ⡸ᵜ Version 1.0 ཙ㓯ཆ㿲 Antenna Appearance ᢰᵟ㿴Ṭ Technical Specifications 仁⦷㤳ത Frequency Range 462-468MHZ ཙ㓯㊫ර Antenna Type Monopole ቪረ Dimensions 4.9cm 䱫ᣇ Impedance 50Ohm ᴰབྷ໎⳺ Maximum Gain -2dBi ཙ㓯ቪረ Antenna size ཙ㓯䗀ሴᯩੁമ Antenna Radiation Pattern 3Dമ Three dimensional graphics Total Power (dBm) -20 -2 -18 -16 -14 -12 -10 -8 -6 -4 X Y Z Azimuth = 0.0 Elevation = 0.0 Roll = 0.0 Total Power (dBm) -20 -2 -18 -16 -14 -12 -10 -8 -6 -4 Y Z X Azimuth = 0.0 Elevation = 0.0 Roll = -90.0 Total Power (dBm) -20 -2 -18 -16 -14 -12 -10 -8 -6 -4 Z X Y Azimuth = 90.0 Elevation = -90.0 Roll = 0.0

TEST REPORT Applicant: Shenzhen yizhongge Electronic Co., Ltd Address: 401, building D, No.28, Xinyuan Industrial Zone, Xinmu community, Pinghu street, Longgang District, Shenzhen, China Product Name: Walkie Talkies FCC ID: 2AYV7XF-638 Standard(s): 47 CFR Part 95 Subpart B ANSI C63.26-2015 Report Number: SZNS1240104-00948E-RF-00 Report Date: 2024/2/7 The above device has been tested and found compliant with the requirement of the relative standards by Bay Area Compliance Laboratories Corp. (Dongguan). Reviewed By: Gavin Xu Approved By: Ivan Cao Title: RF Engineer Title: EMC Manager Bay Area Compliance Laboratories Corp. (Dongguan) No.12, Pulong East 1 st Road, Tangxia Town, Dongguan, Guangdong, China Tel: +86-769-86858888 Fax: +86-769-86858891 www.baclcorp.com.cn 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. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. 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 may contain data that are not covered by the accreditation scope and shall be marked with ★.This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government. Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-00 Report Template Version: FCC-FRS-V1.1 Page 2 of 31 CONTENTS DOCUMENT REVISION HISTORY .......................................................................................... 4 1. GENERAL INFORMATION .................................................................................................... 5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 5 1.2 ACCESSORY INFORMATION: ............................................................................................................... 5 1.3 ANTENNA INFORMATION DETAIL▲: ................................................................................................. 5 1.4 EQUIPMENT MODIFICATIONS ............................................................................................................. 5 2. DESCRIPTION OF TEST CONFIGURATION ..................................................................... 6 2.1 OPERATION FREQUENCY DETAIL: ..................................................................................................... 6 2.2 EUT OPERATION CONDITION: ........................................................................................................... 6 2.3 EUT EXERCISE SOFTWARE ................................................................................................................. 6 2.4 SUPPORT EQUIPMENT LIST AND DETAILS ......................................................................................... 6 2.5 SUPPORT CABLE LIST AND DETAILS .................................................................................................. 6 2.6 BLOCK DIAGRAM OF TEST SETUP ...................................................................................................... 7 2.7 TEST FACILITY ..................................................................................................................................... 8 2.8 MEASUREMENT UNCERTAINTY .......................................................................................................... 8 3. SUMMARY OF TEST RESULTS ............................................................................................ 9 4. TEST RESULTS ....................................................................................................................... 10 4.1 FRS FREQUENCY ACCURACY ........................................................................................................... 10 4.1.1 Applicable Standard ..................................................................................................................................... 10 4.1.2 EUT Setup Block Diagram .......................................................................................................................... 10 4.1.3 Test Procedure ............................................................................................................................................. 10 4.1.4 Test Result ................................................................................................................................................... 11 4.2 FRS TRANSMIT POWER ..................................................................................................................... 13 4.2.1 Applicable Standard ..................................................................................................................................... 13 4.2.2 EUT Setup Block Diagram .......................................................................................................................... 13 4.2.3 Test Procedure ............................................................................................................................................. 13 4.2.4 Test Result ................................................................................................................................................... 14 4.3 FRS EMISSION TYPES ........................................................................................................................ 15 4.3.1 Applicable Standard ..................................................................................................................................... 15 4.3.2 Judgment .....................................................................................................................…

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Bay Area Compliance Laboratories Corp. (Dongguan) Report No.: SZNS1240104-00948E-RF-00-TSP TEST SETUP PHOTOGRAPHS Radiated Emission 30M-1GHz View Radiated Emission Above 1GHz View