2BGGS-RHEOFITA1Auto-Roller

YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. CERTIFICATIONSCONCERNING“COVERED”EQUIPMENT Date:2024-7-22 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 FCCID:2BGGS-RHEOFITA1 ToWhomItMayConcern: Asrequiredbysection2.911(d)(5)(i),[YunwangInnovationIntelligence(Shenzhen)Co.,Ltd.] (“theapplicant”)certifiesthattheequipmentforwhichauthorizationissoughtisnot “covered”equipmentprohibitedfromreceivinganequipmentauthorizationpursuantto section2.903oftheFCCrules. Asrequiredbysection2.911(d)(5)(ii),[YunwangInnovationIntelligence(Shenzhen)Co., Ltd.](“theapplicant”)certifiesthat,asofthedateofthefilingoftheapplication,the applicant[isnot]identifiedontheCoveredListasanentityproducing“covered” equipment. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature PrintedName:DouHaibo Company:YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. JobTitle:Manager Email:[email protected] Telephone:18018783496

YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. LETTEROFAGENCY Date:2024-7-22 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 FCCID:22BGGS-RHEOFITA1 ToWhomItMayConcern: Wecertifythatwearenotsubjecttodenialoffederalbenefits,thatincludesFCCbenefits, pursuanttoSection5301oftheAnti-DrugAbuseACTof1988,U.S.C.862.Further,no party,asdefinedin47CFR1.2002(b),totheapplication,issubjecttodenialoffederal benefits,thatincludesFCCbenefits. Thankyouforyourattentiontothismatter. Sincerelyyours, Signature PrintedName:DouHaibo Company:YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. JobTitle:Manager Email:[email protected] Telephone:18018783496

YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. RequestforLong-TermConfidentialityLetter-FCC Date:2024-7-22 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,Maryland21046 Re:RequestforLong-Termconfidentiality FCCID:2BGGS-RHEOFITA1 Towhomitmayconcern, Weherebyrespectfullyrequestthatundertheprovisionof47CFR0.459and0.457(d)the documentslistedbelowandattachedwiththisapplicationforcertificationbeprovidedwithLong- Termconfidentialstatus.  Schematics.pdf  OperationalDescription.pdf FrequencyBlockDiagrams.pdf Anyexhibit/informationforwhichwehaverequestedconfidentiality,butwhichmaynotbe accordedsuchtreatmentbytheFCC,shouldbereturnedtous. Thedocumentslistedabovecontaintradesecretsthataretreatedasconfidentialbyus. Substantialcompetitiveharmtouscouldresultshouldtheybemadeavailabletothepublic. Sincerelyyours, Signature PrintedName:DouHaibo Company:YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. JobTitle:Manager Email:[email protected] Telephone:18018783496

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FCCID:2BGGS-RHEOFITA1 RFExposureEvaluation AccordingtoKDB447498D01GeneralRFExposureGuidancev06andpart2.1093， UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures,standalone 1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposure conditions,bymeasurementornumericalsimulation,isnotrequiredwhenthe correspondingSARTestExclusionThresholdcondition(s),listedbelow,is(are)satisfied. For100MHzto6GHzandtestseparationdistances≤50mm,the1-gand10-gSARtest exclusionthresholdsaredeterminedbythefollowing: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[√f (GHz) ]≤3.0for1-gSAR,and≤7.5for10-gextremitySAR,where f (GHz) istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison Here, ForBLE MaxPower(dBm)MaxPower(mW)Frequency(MHz)Min.distance(mm)Calc.thresholdslimit 0.661.16424805 0.361 3.0 SoaSARtestisnotrequired

Prepared by: Xu Ying Approved by: Xu Kai TA Technology (Shanghai) Co., Ltd. Building 3, No.145, Jintang Rd, Pudong Shanghai, P.R.China TEL: +86-021-50791141/2/3 FAX: +86-021-50791141/2/3-8000 OTA TEST REPORT TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2021. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Applicant Espressif Systems Product ESP ANT B Model ESP ANT B Report No. Y2302A0204-T1 Issue Date March 22, 2023 OTA Test Report Report No: Y2302A0204-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 19 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. Test Laboratory .............................................................................................................................. 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Test Facility ....................................................................................................................... 3 1.3. Testing Location ................................................................................................................ 3 1.4. Laboratory Environment .................................................................................................... 3 2. General Description of Equipment Under Test .............................................................................. 4 2.1. Applicant and Manufacturer Information ............................................................................ 4 2.2. General Information ........................................................................................................... 4 2.3. Test Date ........................................................................................................................... 4 2.4. Received Date ................................................................................................................... 4 2.5. Applied Standards ............................................................................................................. 5 3. Test Conditions .............................................................................................................................. 6 3.1. Test Configuration ............................................................................................................. 6 3.2. Test Measurement ............................................................................................................. 6 4. Test Results ................................................................................................................................... 7 4.1. Gain and Efficiency ............................................................................................................ 7 4.2. Voltage Standing Wave Ratio (VSWR) .............................................................................. 8 4.3. Antenna S11 ...................................................................................................................... 9 5. Equipment List ............................................................................................................................. 10 ANNEX A: 2-D Pattern Plots .................................................................................................................... 11 ANNEX B: The EUT Appearance and Test Configuration........................................................................ 17 B.1 EUT Appearance ................................................................................................................... 17 B.2 Test Configuration ................................................................................................................. 19 OTA Test Report Report No: Y2302A0204-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 19 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. Test Laboratory 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA Technology (Shanghai) Co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2. Test Facility A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform measurement. 1.3. Testing Location Company: TA Technology (Shanghai) Co., Ltd. Address: Building 3, No.145, Jintang Rd, Pudong Shanghai, P.R.China City: Shanghai Post code: 201201 Country: P. R. China Contact: Xu Kai Telephone: +86-021-50791141/2/3 Fax: +86-021-50791141/2/3-8000 Website: http://www.ta-shanghai.com E-mail: [email protected] 1.4. Laboratory Environment Temperature Min. =19°C，Max. = 25°C Relative humidity Min. =40%，Max. =72% Shield effect 0.7-6GHz > 100dB Ground resistance <0.5Ω OTA Test Report Report No: Y2302A0204-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 19 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 2. General Description of Equipment Under Test 2.1. Applicant and Manufacturer Information Applicant Name Espressif Systems Applicant address #101, Block 2, 690 Bibo Road, Zhang Jiang High-Tech Park, Shanghai, China Manufacturer Name Espressif Systems Manufacturer address #101, Block 2, 690 Bibo Road, Zhang Jiang High-Tech Park, Shanghai, China 2.2. General Information EUT Description Product N…

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BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 1 of 44 FCCPART15C MeasurementandTestReport For YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. FCCID:2BGGS-RHEOFITA1 FCCRule(s)/Methods: FCCCFRTitle47Part15SubpartCSection15.247 ANSIC63.10:2013 ProductDescription: Auto-Roller Trademark / Model/Typereference.:RheoFitA1 ReportNo.:BSL2405208275094F-1 Dateofreceiptoftestitem:Jun4,2024 Dateofsampling:Jun5,2024 TestedDate:Jun6,2024toJun11,2024 IssuedDate:Jun15,2024 TestedBy: LrisYao/Engineer ReviewedBy: LeviXiao/EMCManager Approved&AuthorizedBy: SalonOuyang/PSQManager BSLTestingCo.,LTD. 1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict,Shenzhen,Shiyan Street,Bao'anDistrict,Shenzhen,Guangdong,518052,People’sRepublicofChina Tel:400-882-9628Fax:86-755-26508703 BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 2 of 44 TableofContents Page 1.VERSION4 2.SUMMARYOFTESTRESULTS5 2.1TESTFACILITY6 2.2MEASUREMENTUNCERTAINTY6 3.GENERALINFORMATION7 3.1GENERALDESCRIPTION7 3.2DESCRIPTIONOFTESTMODES9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED9 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)9 3.5EQUIPMENTSLISTFORALLTESTITEMS10 4.EMCEMISSIONTEST12 4.1CONDUCTEDEMISSIONMEASUREMENT12 4.1.11POWERLINECONDUCTEDEMISSIONLIMITS12 4.1.2TESTPROCEDURE12 4.1.3DEVIATIONFROMTESTSTANDARD12 4.1.4TESTSETUP13 4.1.5EUTOPERATINGCONDITIONS13 4.1.6TESTRESULTS13 4.2RADIATEDEMISSIONMEASUREMENT14 4.2.1RADIATEDEMISSIONLIMITS16 4.2.2TESTPROCEDURE17 4.2.3DEVIATIONFROMTESTSTANDARD17 4.2.4TESTSETUP17 4.2.5EUTOPERATINGCONDITIONS18 5.RADIATEDBANDEMISSIONMEASUREMENT23 5.1TESTREQUIREMENT:23 5.2TESTPROCEDURE23 5.3DEVIATIONFROMTESTSTANDARD23 5.4TESTSETUP24 5.5EUTOPERATINGCONDITIONS24 5.6TESTRESULT25 6.POWERSPECTRALDENSITYTEST29 6.1APPLIEDPROCEDURES/LIMIT29 6.2TESTPROCEDURE29 6.3DEVIATIONFROMSTANDARD29 6.4TESTSETUP29 BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 3 of 44 TableofContentsPage 6.5EUTOPERATIONCONDITIONS29 6.6TESTRESULTS30 7.CHANNELBANDWIDTH32 7.1APPLIEDPROCEDURES/LIMIT32 7.2TESTPROCEDURE32 7.3DEVIATIONFROMSTANDARD32 7.4TESTSETUP32 7.5EUTOPERATIONCONDITIONS32 7.6TESTRESULTS33 8.PEAKOUTPUTPOWERTEST35 8.1APPLIEDPROCEDURES/LIMIT35 8.2TESTPROCEDURE35 8.3DEVIATIONFROMSTANDARD35 8.4TESTSETUP35 8.5EUTOPERATIONCONDITIONS35 8.6TESTRESULTS36 9.CONDUCTEDBANDEDGEANDSPURIOUSEMISSION37 9.1APPLICABLESTANDARD37 9.2TESTPROCEDURE37 9.3DEVIATIONFROMSTANDARD37 9.4TESTSETUP37 9.5EUTOPERATIONCONDITIONS37 10.ANTENNAREQUIREMENT43 11.TESTSETUPPHOTO44 12.EUTCONSTRUCTIONALDETAILS44 BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 4 of 44 1.VERSION ReportNo.VersionDescriptionApproved BSL2405208275094F-1Rev.01InitialissueofreportJun15,2024 BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 5 of 44 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.247),SubpartC Standard Section TestItemJudgmentRemark FCCpart15.203/15.247 (c) AntennarequirementPASS FCCpart15.207ACPowerLineConductedEmissionPASS FCCpart15.247(b)(3)ConductedPeakOutputPowerPASS FCCpart15.247(a)(2)ChannelBandwidth&99%OCBPASS FCCpart15.247(e)PowerSpectralDensityPASS FCCpart15.247(d) ConducetedBandEdgeandSpurious Emission PASS FCCpart15.205/15.209SpuriousEmissionPASS NOTE: (1)“N/A”denotestestisnotapplicableinthisTestReport BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 6 of 44 2.1TESTFACILITY BSLTESTINGCO.,LTD Add.:1/F,BuildingB,XinshidaiGRPark,ShiyanStreet,Bao'anDistrict,Shenzhen,ShiyanStreet, Bao'anDistrict,Shenzhen,Guangdong,518052,People’sRepublicofChina FCCTestFirmRegistrationNumber:562200 DesignationNumber:CN1338 ICRegisteredNo.:11093A DesignationNumber:CN0019 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U ， whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2，providingalevelofconfidenceofapproximately95 % 。 No.ItemUncertainty 1 3mcamberRadiatedspurious emission(9KHz-30MHz) U=4.5dB 2 3mcamberRadiatedspurious emission(30MHz-1GHz) U=4.8dB 3 3mchamberRadiatedspurious emission(1GHz-6GHz) U=4.9dB 4 3mchamberRadiatedspurious emission(6GHz-40GHz) U=5.0dB 5ConducteddisturbanceU=3.2dB 6RFBandEdgeU=1.68dB 7RFpowerconductedU=1.86dB 8RFconductedSpuriousEmissionU=2.2dB 9RFOccupiedBandwidthU=1.8dB 10RFPowerSpectralDensityU=1.75dB 11humidityuncertaintyU=5.3% 12Temperatureuncertainty U=0.59 °C BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 7 of 44 3.GENERALINFORMATION 3.1GENERALDESCRIPTION Applicant: YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. Addressofapplicant: Office02,07FloorOfficeBuilding5A,ChuangzhiCloudCityII Project,XingkeRoad,XiliCommunity,NanshanDistrict,Shenzhen, China Manufacturer: YunwangInnovationIntelligence(Shenzhen)Co.,Ltd. Addressofmanufacturer: Office02,07FloorOfficeBuilding5A,ChuangzhiCloudCityII Project,XingkeRoad,XiliCommunity,NanshanDistrict,Shenzhen, China ProductName: Auto-Roller ModelNo.: RheoFitA1 ModelDifferent.: N/A Hardwareversion V1.0 Softwareversion V1.0 SerialNo.: N/A Sample(s)Status:Engineersample OperationFrequency:2402MHz~2480MHz ChannelNumbers:40 ChannelSeparation:2MHz ModulationType:GFSK AntennaType:PCBAntenna Antennagain:+3.42dBi Powersupply: DC20VfromUSBport Battery:DC21.6V,2295mAh SWITCHINGPOWER ADAPTER: N/A BSLTestingCo.,LTD.ProjectNo.:BSL2405208275094F-1 Page 8 of 44 OperationFrequencyeachofchannel ChannelFrequencyChannelFrequencyChannelFrequencyChannelFrequency 12402MHz112422MHz212442MHz312462MHz 22404MHz122424MHz222444MHz322464MHz 32406MHz132426MHz232446MHz332466MHz 42408MHz142428MHz242448MHz342468MHz 52410MHz152430MHz252450MHz352470MHz 62412MHz162432MHz262452MHz362472MHz 72414MHz172434MHz272454MHz372474MHz 82416MHz182436MHz282456MHz382476MHz 92418MHz192438MHz292458MHz392478MHz 102420MHz202440MHz302460MHz402480MHz Note: Insection15.31(m),regardstotheoperatingfrequencyrangeover10MHz,theLowestfrequency, themiddlefrequency,andthehighestfrequencyofchannelwereselectedtoperformthetest,and theselectedchannelseebelow: ChannelFrequency Thelowestchannel2402MHz Themiddlechannel2440MHz TheHighestchannel2480MHz BSLTestingCo.,LTD.ProjectNo.:BSL240520…

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