2BBTZ-B3-ENB3 Pro Family Set

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Page 1 of 5 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. External Photos Photo 1 Photo 2 Page 2 of 5 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 5 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 5 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 Page 5 of 5 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 9 ------End------

Label FCC ID: 2BBTZ-B3-EN

Page 1 of 4 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Internal Photos Photo 1 Photo 2 Page 2 of 4 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 4 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Antenna Page 4 of 4 FCC ID: 2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 ------End------

RFExposureevaluation FCCID:2BBTZ-B3-EN 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)]·[√f(GHz)] ≤3.0for1-gSARand≤7.5for10-gextremitySAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz • PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison •3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis≤50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance Frequency (MHz) GFSK 240224402480 Target(dBm)222 Tolerance±(dB)1.01.01.0 Page2of2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BT2.553.01.5850.50<3.0Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page 1 of 36 Report No.: AIT23061507FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: Shanghai WhalesBot Technology Co., Ltd Applicant add.: 3 / F, building 19, No. 60, Zhonghui Road, Minhang District, Shanghai Manufacturer: Shanghai WhalesBot Technology Co., Ltd Manufacturer add.: 3 / F, building 19, No. 60, Zhonghui Road, Minhang District, Shanghai Product Information: Product Name: B3 Pro Family Set Model/HVIN: B3-EN Brand Name: WhalesBot FCC ID: 2BBTZ-B3-EN Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: June 15,2023 Date of Test: June 15,2023~June 25,2023 Date of Issue: June 26,2023 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Simba Huang Seal.chen Page 2 of 36 Report No.: AIT23061507FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS ...................................................................................................................................................................... 2 2 TEST SUMMARY ............................................................................................................................................................ 4 2.1 Statement of the Measurement Uncertainty ................................................................................. 4 2.2 Measurement Uncertainty ............................................................................................................. 4 3 TEST FACILITY ............................................................................................................................................................... 5 3.1 Deviation from standard ................................................................................................................ 5 3.2 Abnormalities from standard conditions ........................................................................................ 5 3.3 Test Location ................................................................................................................................. 5 4 GENERAL INFORMATION ........................................................................................................................................... 6 4.1 Test frequencies ............................................................................................................................ 7 4.2 EUT Peripheral List ....................................................................................................................... 7 4.3 Test Peripheral List ........................................................................................................................ 7 4.4 TEST METHODOLOGY ................................................................................................................ 8 4.4.1 EUT Configuration ............................................................................................................................. 8 4.4.2 EUT Exercise ..................................................................................................................................... 8 4.4.3 General Test Procedures ................................................................................................................... 8 4.5 Description of Test Modes ............................................................................................................. 9 5 EQUIPMENT USED DURING TEST ...........................................................................................................................10 6 TEST RESULTS AND MEASUREMENT DATA .......................................................................................................11 6.1 Antenna requirement ................................................................................................................... 11 6.2 On Time and Duty Cycle ............................................................................................................. 12 6.3 Maximum Conducted Output Power Measurement .................................................................... 13 6.4 6 dB Spectrum Bandwidth Measurement.................................................................................... 15 6.5 99% Occupy Bandwidth .............................................................................................................. 16 6.6 Power Spectral Density ............................................................................................................... 17 6.7 Conducted Spurious Emissions and Band Edges Test ............................................................... 18 6.8 Restrict-band Band-edge Measurements ................................................................................... 19 6.9 Radiated Emissions Measurement ............................................................................................. 22 6.10 Conducted Emissions .................................................................................................................…

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TestedProducts Antenna1:PCBantenna • Frequency=2.400GHz. • Frequency=2.450GHz. • Frequency=2.500GHz. Product ： ANTENNA2.4GHz ITEMSPEC. ModelNameANT-301 CenterFrequency2400MHz 0dbi 2450MHz -0.57dbi 2500MHz -1.04dbi MAX.GAIN0dbi PolarizationLinear,Vertical AzimuthBeamPatternOmni-directional Impedance50Ω AntennaLength8.5mm

Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 1 of 35 Appendix B RF Test Data for BT (BLE) (Conducted Measurement) Product Name: B3 Pro Family Set Trade Mark: WhalesBot Test Model: B3-EN Environmental Conditions Temperature: 25.8°C Relative Humidity: 52.4% ATM Pressure: 100.0 kPa Test Engineer: Simba Huang Supervised by: Seal Chen Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 2 of 35 Contents Page COVER PAGE 1 Duty Cycle....................................................................................................................................................................................... 3 1.1 Test Result .......................................................................................................................................................................... 3 1.2 Test Graphs ......................................................................................................................................................................... 4 2 Maximum Conducted Output Power ................................................................................................................................................ 7 2.1 Test Result .......................................................................................................................................................................... 7 2.2 Test Graphs ......................................................................................................................................................................... 8 3 -6dB Bandwidth ............................................................................................................................................................................. 11 3.1 Test Result ........................................................................................................................................................................ 11 3.2 Test Graphs ....................................................................................................................................................................... 12 4 Maximum Power Spectral Density Level ....................................................................................................................................... 15 4.1 Test Result ........................................................................................................................................................................ 15 4.2 Test Graphs ....................................................................................................................................................................... 16 5 Band Edge .................................................................................................................................................................................... 19 5.1 Test Result ........................................................................................................................................................................ 19 5.2 Test Graphs ....................................................................................................................................................................... 20 6 Conducted RF Spurious Emission ................................................................................................................................................. 24 6.1 Test Result ........................................................................................................................................................................ 24 6.2 Test Graphs ....................................................................................................................................................................... 25 7 Restrict Band ................................................................................................................................................................................ 31 7.1 Test Result ........................................................................................................................................................................ 31 7.2 Test Graphs ....................................................................................................................................................................... 32 Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 3 of 35 1 Duty Cycle 1.1 Test Result Mode Frequency (MHz) Duty Cycle (%) 1/T (kHz) BLE 1M 2402 64 2.56 BLE 1M 2440 64.03 2.56 BLE 1M 2480 64.35 2.56 BLE 2M 2402 34.72 4.76 BLE 2M 2440 35.06 4.76 BLE 2M 2480 34.41 5 Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 4 of 35 1.2 Test Graphs Test Graphs BLE 1M 2402MHz BLE 1M 2440MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 5 of 35 BLE 1M 2480MHz BLE 2M 2402MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 6 of 35 BLE 2M 2440MHz BLE 2M 2480MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 7 of 35 2 Maximum Conducted Output Power 2.1 Test Result Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict BLE 1M 2402 1.44 30 Pass BLE 1M 2440 2.24 30 Pass BLE 1M 2480 2.11 30 Pass BLE 2M 2402 1.45 30 Pass BLE 2M 2440 2.26 30 Pass BLE 2M 2480 2.12 30 Pass Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 8 of 35 2.2 Test Graphs Test Graphs BLE 1M 2402MHz BLE 1M 2440MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 9 of 35 BLE 1M 2480MHz BLE 2M 2402MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FCC ID:2BBTZ-B3-EN Page 10 of 35 BLE 2M 2440MHz BLE 2M 2480MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23061507FW1 FC…

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Page 1 of 2 FCC ID:2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Test Setup Photo Radiated Emission Page 2 of 2 FCC ID:2BBTZ-B3-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Conducted Emission ------End------