2AJVKMO-SJRSmart Jump Rope

Rev 11/20/07 (Foto Electric Supply Co., INC.) Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AJVKMO-SJR Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description Block Diagram Schematics Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, (Jared Melnicoff)

Foto Electric Supply Co., INC. Model Difference 2022-11-04 EUT NAME: Smart Jump Rope MODEL : MO-SJR, MO-SJR100, MO-SJR200, MO-SJR300, MO-SJR400, MO- SJR500 FCC ID: 2AJVKMO-SJR All the model are the same circuit and RF module, only for model name and color. Regards Sincerely Client’s signature Client’s signature: Client’s name / title : Jared Melnicoff / Director Sourcing Contact information / address: 1 Rewe Street Brooklyn, NY 11211, USA

(Foto Electric Supply Co., INC.) Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022/11/04 SUBJECT: FCC Application for FCC ID: 2AJVKMO-SJR To Whom It May Concern: We, the undersigned, hereby authorize Alan Mei at Shenzhen BCTC Testing Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Alan Mei of Shenzhen BCTC Testing Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, (Jared Melnicoff)

External Photos

Size:20*10mm Smart Jump Rope FCC ID: 2AJVKMO-SJR Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2AJVKMO-SJR Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR,where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. BLE Condition Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict NVNT BLE 1M 2402 -2.56 30 Pass NVNT BLE 1M 2440 0.14 30 Pass NVNT BLE 1M 2480 1.7 30 Pass max possible output power (PK,conducted)：1±1dBm -12.56dBi logarithmic terms convert to numeric result is nearly 0.06 2dBm=1.58mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.402=0.490≤3.0 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.441=0.494≤3.0 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.58/5*√2.48=0.498≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page1of11 TestingReport CustomerName:DongguanZhongkangTechnologyElectronicsCo.,Ltd ProductName:SmartSkippingRope SampleModel:ISR-1001 ReferenceStandard:GB/T9410-2008;ANSI/IEEEStd149-1979 IssueDate:2022.1.14 Engineer:Date: Auditor: Date: Approver:Date: ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page2of11 Version VersionNo.DateDescriptionFormulateApproval A02021.12.17Forthefirsttime,formulateJeremyEason A12022.1.14AddAntennaphotosJeremyEason Contents 1.GeneralInformation.........................................................................................................................3 1.1Generalinformationoftestinginstitutions...........................................................................3 1.2Testingprinciple....................................................................................................................3 1.3Testequipment......................................................................................................................4 1.4Testenvironment...................................................................................................................4 1.5Statement...............................................................................................................................4 2.SampleInformation..........................................................................................................................5 2.1Clientinformation.................................................................................................................5 2.2DescriptionofEUT(S)..........................................................................................................5 2.3Antennaphotosandantennasizedrawings..........................................................................6 2.4DUTsetupphotooffreespaceOTAtesting.........................................................................7 3.TestResults.......................................................................................................................................8 3.1Teststandard..........................................................................................................................8 3.2Testuncertainty.....................................................................................................................8 3.3Testdata.................................................................................................................................9 3.3.1S11parameters...........................................................................................................9 3.3.2VSWR........................................................................................................................9 3.3.3Gain,Efficiency.........................................................................................................9 3.3.4Typicalfreespaceradiationpattern.........................................................................10 （Thefollowingisblank）...............................................................................................................11 ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page3of11 1.GeneralInformation 1.1Generalinformationoftestinginstitutions Name ShenzhenRFI-LABCommunicationTechnologyCo.,Ltd. Address 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ Tel 13631623357 E-mail [email protected] Equipment Alltheequipmentusedinthereportisfixedin 10/FA,LingyunBld,LiufangRd,BaoanDistrict,SZ 1.2Testingprinciple ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page4of11 1.3Testequipment EquipmentModelNo.SerialNo.Manufacturer Calibration date Next calibration date 16probe microwave chamber 3*3*2.5 RFI-LAB-RF -A00 SUNYIELD2021.03.152023.03.14 Network Analyzer E5071C RFI-LAB-RF -A02 Agilent2021.5.142022.5.13 Network Analyzer E5071C RFI-LAB-RF -C02 KEYSIGHT2021.5.142022.5.13 1.4Testenvironment Temperature 23.9°C Humidity 58%RH Pressure 100.03kPa 1.5Statement (1)Thetestresultsinthereportareonlyapplicabletothetestedsamplesandthetestedsamples workundertheenvironmentdescribedinthereport. (2)OnlyShenzhenRFI-LABCommunicationTechnologyCo.,Ltd.havetherighttomodifythe report,andthemodificationinformationshallbeannotatedintherevisionform. (3)Anyobjectiontothisreportshallberaisedwithin30daysafterformalconfirmationofthe report. (4)Thisreportisinvalidifthereisanyevidencethatthesampleinformationprovidedisfalsified. (5)Thereportisinvalidwithoutthesignatureoftheauditorandapprover. ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page5of11 2.SampleInformation 2.1Clientinformation Name DongguanZhongkangTechnologyElectronicsCo.,Ltd Address No.12,YanshaRoad,Tianxin,TangxiaTown,DongguanCity,Guangdong Contacts GeZhang Tel 17727957634 E-mail [email protected] 2.2DescriptionofEUT(S) ProductName SmartDumbbell SampleModel ISR-1001 Size / SerialNo. / TestItem VSWR;Gain;Efficiency;Radiationpattern; FrequencyRange 2400MHz-2500MHz ReceivedDate 2021.12.16 TestDate 2021.12.16 Remark ThelengthoftheRFcableis50mm ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page6of11 2.3Antennaphotosandantennasize Antennaphotos Antennasize ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page7of11 2.4DUTsetupphotooffreespaceOTAtesting Planform Frontview ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page8of11 3.TestResults 3.1Teststandard NameParameterMethodStandardno. Mobile communication antenna VSWR Genericspecificationfor antennasusedinthemobile communications GB/T9410-2008Antennagain Radiationpattern Antenna Radiationefficiency IEEEStandardTest ProceduresforAntennas ANSI/IEEEStd 149-1979 Gainanddirectivity 3.2Testuncertainty TheuncertaintywascalculatedonthebasisoftheGUMpublishedbyISO,usingthe inclusionfactorofK=2andthe95%confidenceleveltoexpresstheextended uncertainty. ItemUncertainty Antennagain±1dB Radiationefficiency±10% ReportNo.:RFI-LAB-RF-202112-LL19 QP030-E11 Page9of11 3.3Testdata 3.3.1S11parameters 3.3.2VSWR 3.3.3Gain,Efficiency Frequency/MHz 240024502500 VSWR 16.74518.81320.057 Frequency/MHz 24002410242…

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No.：BCTC/RF-EMC-005 Page: 1 of 41 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2209466121E Applicant: Foto Electric Supply Co., INC. Product Name: Smart Jump Rope Model/Type Ref.: MO-SJR Tested Date: 2022-09-27 to 2022-10-24 Issued Date: 2022-10-24 Report No.: BCTC2209466121E No.：BCTC/RF-EMC-005 Page: 2 of 41 Edition：A.5 FCC ID: 2AJVKMO-SJR The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Smart Jump Rope Trademark: Model/Type Ref.: MO-SJR MO-SJR100, MO-SJR200, MO-SJR300, MO-SJR400, MO-SJR500 Prepared For: Foto Electric Supply Co., INC. Address: 1 Rewe Street Brooklyn, NY 11211, USA Manufacturer: Foto Electric Supply Co., INC. Address: 1 Rewe Street Brooklyn, NY 11211, USA Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-09-27 Sample tested Date: 2022-09-27 to 2022-10-24 Issue Date: 2022-10-24 Report No.: BCTC2209466121E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth BLE radio test report. Tested by: Approved by: Lei Chen/Project Handler Zero Zhou/Reviewer Report No.: BCTC2209466121E No.：BCTC/RF-EMC-005 Page: 3 of 41 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ............................................................................................................. 9 4.6 Table Of Parameters Of Text Software Setting ..................................................... 9 5. Test Facility And Test Instrument Used ............................................................... 10 5.1 Test Facility ......................................................................................................... 10 5.2 Test Instrument Used .......................................................................................... 10 6. Conducted Emissions .......................................................................................... 12 6.1 Block Diagram Of Test Setup .............................................................................. 12 6.2 Limit .................................................................................................................... 12 6.3 Test Procedure ................................................................................................... 12 6.4 EUT Operating Conditions .................................................................................. 13 6.5 Test Result .......................................................................................................... 13 7. Radiated Emissions ............................................................................................. 14 7.1 Block Diagram Of Test Setup .............................................................................. 14 7.2 Limit .................................................................................................................... 15 7.3 Test Procedure ................................................................................................... 16 7.4 EUT Operating Conditions .................................................................................. 17 7.5 Test Result .......................................................................................................... 17 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 21 8.1 Block Diagram Of Test Setup .............................................................................. 21 8.2 Limit .................................................................................................................... 21 8.3 Test Procedure ................................................................................................... 22 8.4 EUT operating Conditions ................................................................................... 22 8.5 Test Result .......................................................................................................... 23 9. Power Spectral Density Test ............................................................................... 24 9.1 Block Diagram Of Test Setup .............................................................................. 24 9.2 Limit .................................................................................................................... 24 9.3 Test Procedure ................................................................................................... 24 9.4 EUT Operating Conditions .................................................................................. 24 9.5 Test Result .......................................................................................................... 25 10. Bandwidth Test ........................................................…

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