2AUZPEHP-61DWireless earphone

C5266091_X8_Ed.1 1/1 LetterofAuthorization <ShenzhenYisumaNetworkTechnologyCo.,ltd> Company:ShenzhenYisumaNetworkTechnologyCo.,ltd Address:Room808,MindeBuilding,Xiangnan3rdZone,Minqiang Community,MinzhiStreet,LonghuaDistrict,Shenzhen,China ProductName:Wirelessearphone ModelNumber:EHP-61D FCCIdentifier:2AUZPEHP-61D WeauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdelCarme,s/n, 08193Bellaterra,Spain,toactonourbehalfonallmattersconcerningthe abovenamedequipment. AnyindividualwithinLGAITechnologicalCenterS.A.isauthorizedtoactonour behalfandtakeactionontheapplication. WedeclarethatauthorizeLGAITechnologicalCenterS.A.,RondadelaFontdel Carme,s/n,08193Bellaterra,Spain,isallowedtoforwardallinformation relatedtotheapprovalprojecttotheFederalCommunicationCommissionand todiscussanyissuesconcerningtheapprovalapplication.Anyandallacts carriedoutbyLGAITechnologicalCenterS.A.onourbehalfshallhavethe sameeffectasactsofourown. Name:OuBinDate:2022.09-16 Title:Engineer Signatureofapplicant:

C5266091_X10_Ed.1 1/1 ShenzhenYisumaNetworkTechnologyCo.,ltd Room808,MindeBuilding,Xiangnan3rdZone,MinqiangCommunity,Minzhi Street,LonghuaDistrict,Shenzhen,China Date:2022.09.16 Subject:RequestforConfidentiality FCCID:2AUZPEHP-61D ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission'srules (47CFR0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosure. ExhibitsLong-Term Confidentiality Short-Term Confidentiality IDLabel/LocationNoNo AttestationStatementNoNo ExternalPhotosNo BlockDiagram Schematics TestReportNoNo TestSetupPhotosNo User’sManual InternalPhotosNo PartsList/TuneUp RFExposureInfo OperationalDescription CoverLetter(s)NoNo SDRSoftware/SecurityInfoNo Incaseofshort-termConfidentiality,theapplicantrequeststheexhibitsselected abovearewithheldfrompublicviewforaperiodof_180_daysfromthedateofthe GrantofEquipmentAuthorizationandpriortomarketing. Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. Sincerely, Name:OuBinDate:2022.09.16 Title:Engineer Signatureofapplicant:

FCCID:2AUZPEHP-61D

FCCIDLABELINGANDLOCATION FCCIDLabel FCCIDLabelLocation Thelabelshownshallbepermanentlyaffixedataconspicuouslocationonthedeviceandbe readilyvisibletotheuseratthetimepurchase(Labelingrequirementsper2.925) Wirelessearphone FCCID:2AUZPEHP-61D

FCCID:2AUZPEHP-61D PCBAntenna

FCCID:2AUZPEHP-61D RFEXPOSUREEVALUATIONMETHOD AccordingtoFCC1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)Radiation asspecifiedin§1.1307(b) EUTSpecification EUT Wirelessearphone Frequencyband (Operating) WLAN:2.412GHz~2.462GHz WLAN:5.150GHz~5.250GHz WLAN:5.725GHz~5.850GHz OthersBT:2402-2480MHz DevicecategoryPortable(<20cmseparation) Mobile(>20cmseparation) Others ExposureclassificationOccupational/Controlledexposure(S=5mW/cm2) GeneralPopulation/Uncontrolledexposure (S=1mW/cm2) AntennadiversitySingleantenna Multipleantennas Txdiversity Rxdiversity Tx/Rxdiversity Max.outputpower 4.632dBm(0.00291W) Antennagain(Max) 2.0dBi EvaluationappliedMPEEvaluation SAREvaluation FCCID:2AUZPEHP-61D RFEXPOSUREEVALUATIONMETHOD SARTestExclusionThresholdsfor100MHz – 6GHzand ≤ 50mm ApproximateSARTestExclusionPowerThresholdsatSelectedFrequenciesandTestSeparation DistancesareillustratedinthefollowingTable. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparation distances ≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)] · [ √ f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50 mmandfortransmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtest separationdistanceis<5mm,adistanceof5mmisappliedtodetermineSARtest exclusion. FCCID:2AUZPEHP-61D Maximummeasuredtransmitterpower. BR+EDR Operating Mode Frequency Measur ed Power max. power Antenna Gain Antenna Gain (linear) min.test separation distance ResultLimit (MHz)(dBm)(mW)(dBi)/(mm) GFSK 24022.1121.632.01.5850.50413 24412.3651.722.01.5850.53873 24802.4851.772.01.5850.55823 π/4DQPS K 24023.1252.052.01.5850.63653 24413.5622.272.01.5850.70963 24803.8652.442.01.5850.76693 8-DPSK 24024.2242.642.01.5850.81983 24414.3962.752.01.5850.85983 24804.6322.912.01.5850.91513 Remark:Thebestcasegainoftheantennais2.0dBi. 2.0dBilogarithmictermsconverttonumericresultisnearly1.58 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattest separationdistances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparation distance,mm)]·[√f(GHz)] ThetestResultislessthan3.0for1-gSARand≤7.5for10-gextremitySAR. RFexposurestatement:NoSARisrequired.AccordingtoKDB447498andpart 2.1093,UnlessspecificallyrequiredbythepublishedRFexposureKDB procedures,standalone1-gheadorbodyand10-gextremitySARevaluationfor generalpopulationexposureconditions,bymeasurementornumericalsimulation, isnotrequiredwhenthecorrespondingSARTestExclusionThreshold condition(s),listedbelow,is(are)satisfied.

Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No........................: FCC ID.................................................: CTA22081700701-1 2AUZPEHP-61D Compiled by ( position+printed name+signature)..: File administrators Kevin Liu Supervised by ( position+printed name+signature)..: Project Engineer Kevin Liu Approved by ( position+printed name+signature) .. : RF Manager Eric Wang Date of issue.........................................:Aug. 17, 2022 Testing Laboratory Name................: Shenzhen CTA Testing Technology Co., Ltd. Address ................................................. : Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao‘an District, Shenzhen, China Applicant’s name ............................... : Shenzhen Yisuma Network Technology Co., ltd Address.................................................: Room 808, Minde Building, Xiangnan 3rd Zone,Minqiang Community, Minzhi Street,Longhua District,Shenzhen,China Test specification..............................: Standard................................................:FCC Part 15.247 Shenzhen CTA Testing Technology Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen CTA Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen CTA Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description........................: Wireless earphone Trade Mark............................................: N/A Manufacturer.........................................: Shenzhen Yisuma Network Technology Co., ltd Model/Type reference ......................... : EHP-61D Listed Models ...................................... : N/A Modulation...........................................:GFSK, Π/4DQPSK, 8DPSK Frequency .............................................. From 2402MHz to 2480MHz Rating ..................................................... :DC 3.7V From Battery and DC 5V From External circuit Result ..................................................... :PASS Report No.: CTA22081700701-1Page 2 of 44 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn T E S T R E P O R T Equipment under Test:Wireless earphone Model /Type:EHP-61D Listed Models:N/A Model Declaration:N/A Applicant : Shenzhen Yisuma Network Technology Co., ltd Address: Room 808, Minde Building, Xiangnan 3rd Zone,Minqiang Community,Minzhi Street,Longhua District,Shenzhen,China Manufacturer : Shenzhen Yisuma Network Technology Co., ltd Address:Room 808, Minde Building, Xiangnan 3rd Zone,Minqiang Community,Minzhi Street,Longhua District,Shenzhen,China Test Result : PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: CTA22081700701-1Page 3 of 44 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn Contents 1T E S T S T A N D A R D S ............................................................................................................................... 4 2S U M M A R Y....................................................................................................................................................5 2.1General Remarks5 2.2Product Description5 2.3Equipment Under Test5 2.4Short description of the Equipment under Test (EUT)5 2.5EUT operation mode6 2.6Block Diagram of Test Setup6 2.7Related Submittal(s) / Grant (s)6 2.8Modifications6 3T E S T E N V I R O N M E N T.........................................................................................................................7 3.1Address of the test laboratory7 3.2Test Facility7 3.3Environmental conditions7 3.4Summary of measurement results8 3.5Statement of the measurement uncertainty8 3.6Equipments Used during the Test9 4T E S T C O N D I T I O N S A N D R E S U L T S .................................................................................... 1 0 4.1AC Power Conducted Emission10 4.2Radiated Emission13 4.3Maximum Peak Output Power19 4.420dB Bandwidth20 4.5Frequency Separation24 4.6Number of hopping frequency26 4.7Time of Occupancy (Dwell Time)28 4.8Out-of-band Emissions32 4.9Pseudorandom Frequency Hopping Sequence38 4.10 Antenna Requirement39 5T E S T S E T U P P H O T O S O F T H E E U T..................................................................................4 0 6P H O T O S O F T H E E U T .................................................................................................................... 4 1 Report No.: CTA22081700701-1Page 4 of 44 Shenzhen CTA Testing Technology Co., Ltd. Room 106, Building 1, Yibaolai Industrial Park, Qiaotou Community, Fuhai Street, Bao’an District, Shenzhen, China Tel:+86-755 2322 5875 E-mail:[email protected] Web:http://www.cta-test.cn 1 T E S T S T A N D A R D S The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 240…

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i..\Gc ® Page 1 of 15 Antenna Test Report Report No.: AGC13659211211PA01 PRODUCT DESIGNATION PCB A ntenna BRAND NAME N/ A MODEL NAME AT0029 APPLICANT Dark Voice Technobgy Co., Ltd DATE OF ISSUE Dec. 29, 2021 REPORT VERSION Vl.O Attestation of Glob钺t'omolianoo.\(Shenzhen)Co.. Ltd Ill II I II I I I IIIIIIIIII Ill I 111111111111111111111111111111 Any「eporthaving not been signed by authorized approve「,0「 havingbeen altered without authorization, or having not been stamped by t Stamp" is deemed to be invalid. Copying or excerpting portion of, or altering the content of the report is not permitted without the writteif�orization of A笲he test results P「esentedm the reportapp|y onIytothe tested sample. Any oblechons t0「eportlssued by AGC shouId be submItted to AGC WIthm 15d輩亡｀沪哼罕沁作test 「eport. Furthe「enquiryof validity o「 verificationof the test「eportshould be addressed to AGC by [email protected]. Attestation of Global Compliance(Shenzhen)Co., Ltd Attestation of Global Compliance(Shenzhen)Std & Tech Co., Ltd Tel: +86-755 2523 4088 E-mail: [email protected] Web: http://cn.agc-cert.com/ i..\Gc ® REPORT REVISE RECORD Report Version I Revise Time I Issued Date V1.0 I / I Dec. 29, 2021 Valid Version Valid Report No.: AGC13659211201 PA01 Page 2 of 15 Notes Initial release Any「eporthaving not been signed by authorized approve「,0「 havingbeen altered without authorization, or having not been stamped b Stamp" is deemed to be invalid. Copying or excerpting portion of, or altering the content of the report is not permitted without the writteif�orization of A笲he test results P「esentedm the reportapp|y onIytothe tested sample. Any oblechons t0「eportlssued by AGC shouId be submItted to AGC WIthm 15d輩亡｀沪哼罕沁作test 「eport. Furthe「enquiryof validity o「 verificationof the test「eportshould be addressed to AGC by [email protected]. Attestation of Global Compliance(Shenzhen)Co., Ltd Attestation of Global Compliance(Shenzhen)Std & Tech Co., Ltd Tel: +86-755 2523 4088 E-mail: [email protected] Web: http://cn.agc-cert.com/ i..\Gc ® TABLE OF CONTENTS Report No.: AGC13659211201 PA01 Page 3 of 15 1. PRODUCT INFORMATON...................................................................................................................... 4 2. TEST FACILITY....................................................................................................................................... 5 3. TEST EQUIPMENT LIST......................................................................................................................... 5 4. MEASUREMENT UNCERTAINTY.......................................................................................................... 5 5. TEST SUMMARY LIST............................................................................................................................ 5 6. TEST SETUP........................................................................................................................................... 6 7. TEST RESULTS.......................................................................................................................................7 7.1. VSWR................................................................................................................................................ 7 7.2. GAIN AND EFFICIENCY................................................................................................................... 8 7.3. RADIATION PATTERN...................................................................................................................... 9 APPENDIX A: PHOTOGRAPHS OF TEST SETUP..................................................................................11 APPENDIX B: PHOTOGRAPHS OF PCB................................................................................................ 12 Any「eporthaving not been signed by authorized approve「,0「 havingbeen altered without authorization, or having not been stamped b Stamp" is deemed to be invalid. Copying or excerpting portion of, or altering the content of the report is not permitted without the writteif�orization of A笲he test results P「esentedm the reportapp|y onIytothe tested sample. Any oblechons t0「eportlssued by AGC shouId be submItted to AGC WIthm 15d輩亡｀沪哼罕沁作test 「eport. Furthe「enquiryof validity o「 verificationof the test「eportshould be addressed to AGC by [email protected]. Attestation of Global Compliance(Shenzhen)Co., Ltd Attestation of Global Compliance(Shenzhen)Std & Tech Co., Ltd Tel: +86-755 2523 4088 E-mail: [email protected] Web: http://cn.agc-cert.com/ i..\Gc ® 1. PRODUCT INFORMATON Applicant Report No.: AGC13659211201 PA01 Page 4 of 15 Address Manufacturer Address Factory Address Product Designation Brand Name Test Model Date of test Report Template Frequency Range Test Frequencies Antenna Type Dimensions Impedance Maximum test values General information Dark Voice Technology Co., Ltd. Ro om 1612, Building 4, Cloud Park Part 2, No. 2018 Xuegang Road, Longgang District, Shenzhen D ark Voice Technology Co., Ltd. Ro om 1612, Building 4, Cloud Park Part 2, No. 2018 Xuegang Road, Lonaaang District, Shenzhen Dark Voice Techn ology Co., Ltd. R oom 1612, Building 4, Cloud Park Part 2, No. 2018 Xuegang Road, Lo nqqang District, Shenzhen PCB Antenna N/A AT0 028 Dec. 24, 2021 to De c. 29, 2021 AG CRT-ER-PAN1.0 Technical information 2400MHz-2500MHz 2400MHz, 2410MHz, 2420MHz, 2430MHz, 2440MHz, 2450MHz, 2460MHz, 24 70MHz, 2480MHz, 2490MHz, 2500MHz PCB Antenna 10mm*8mm 5 0Q Gain: 2.0dBi; Efficiency: 46.320%; VSWR: 1.212:1 The above equipment was tested by Attestation of Global Compliance (Shenzhen) Co., Ltd. The test results of this report relate only to the tested sample identified in this report. Prepared By Reviewed By Approved By 夕今 Cool Cheng (P r o j e c t Engin ee r ) 吵已H Calvin Liu (Reviewer) 心以 Max Zhang (Authorized Officer) Dec. 29,2021 Dec. 29, 2021 Dec. 29, 2021 Any「eporthaving not been signed by authorized approve「,0「 havingbeen altered without authorization, or havi…

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FCCID:2AUZPEHP-61D