2A2K9-INFBC4Bluetooth controller

INF-BC4 OPERATION 1. POWER ON/OFF button - Press the knob to power the controller on or off. - Turn right and left to adjust volume level. (Remark: A beep tone indicates volume has reached maximum or minimum level.) To establish Bluetooth connection - Once the controller has been powered on, it will blink red and blue until a Bluetooth connection has been made. - Go to your digital media to turn Bluetooth on and then search for the INFBC4 address. Once paired, the controller will turn to a constant blue. 2. Track DN button - Press it to select the previous track. 3. Track UP button - Press it to select the next track. 4. Play/Pause button - Simply press it to pause the playback. - Simply press it again to resume playback. To Disconnect Bluetooth device - Press and hold the PAUSE button for 3 seconds to disconnect from Bluetooth. The controller will flash red and blue when disconnected. - After Bluetooth has been disconnected, press PAUSE button to reconnect the last paired device. Cables configuration: 1. Red: +12V power supply with 2A fuse. 2. Black: GND. 3. Blue: REM OUT with constant 12V power supply. 4. White/Blue: REM IN for external remote control. With external remote control connected to REM IN, the BT Controller can also be powered on/off by that external remote control.) 5. Black: RCA Output. , VOL knob 3 4 1 2 PUSH PWR VOL The distance between user and products should be no less than 20cm

DATE:2022/5/11 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,IappointBlueAsiaTechnologyServices(Shenzhen),LimitedandIOT TestBuildingC,HongjingdaIndustrialPark,No.41,NorthRingRoadsouth,Shangwu Community,ShiyanStreet,Bao'anDistrict,Shenzhen(NameofAgentcompanyname andaddress)toactasouragentinthepreparationofthisapplicationforequipment certification.Icertifythatsubmitteddocumentsproperlydescribethedeviceorsystemfor whichequipmentcertificationissought.Ialsocertifythateachunitmanufactured, importedormarketed,asdefinedintheFederalCommunicationsCommission’s regulationswillhaveaffixedtoitalabelidenticaltothatsubmittedforapprovalwiththis application. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsand conditionsforcertification,stillresideswithPROSPECELECTRONICSofSC,Inc and3325SOUTHMORGANSPOINTROAD.MT.PLEASANT.SC29466-6856 USA(ApplicantNameandaddress) <Signature> Name:MichaelSILBER Title:VP ApplicantCompany:PROSPECELECTRONICSofSC,Inc.

DATE2022/5/11 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2A2K9-INFBC4 ProductName:Bluetoothcontroller RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommission’srules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature> Name:MichaelSILBER Title：VP Company：PROSPECELECTRONICSofSC,Inc.

ProductName: Bluetoothcontroller

LABEL LOCATION

ProductName: Bluetoothcontroller

Page 1 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. Add:BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,GuangdongProvince,China Tel:+86-755-23059481Email:[email protected] TESTREPORT ProductName: Bluetoothcontroller BrandMark: N/A ModelNo.: INFBC4 FCCID: 2A2K9-INFBC4 ReportNumber: BLA-EMC-202204-A9903 DateofSampleReceipt: 2022/4/29 DateofTest: 2022/4/29to2022/5/26 DateofIssue: 2022/5/26 TestStandard: 47CFRPart1.1307,Part1.1310 TestResult:Pass Preparedfor: PROSPECELECTRONICSofSC,Inc 3325SOUTHMORGANSPOINTROAD.MT.PLEASANT.SC29466-6856 USA Preparedby: BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict, Shenzhen,GuangdongProvince,China TEL:+86-755-23059481 Compiledby:Reviewby: Approvedby:Date:2022/5/26 ReportNo.:BLA-EMC-202204-A9903 Page 2 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] REPORTREVISERECORD VersionNo.DateDescription 002022/5/26Original ReportNo.:BLA-EMC-202204-A9903 Page 3 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] TABLEOFCONTENTS 1TESTSUMMARY........................................................................................................................................4 2GENERALINFORMATION.........................................................................................................................5 3GENERALDESCRIPTIONOFE.U.T..........................................................................................................5 4LABORATORYLOCATION.........................................................................................................................6 5RFEXPOSURECOMPLIANCEREQUIREMENT......................................................................................7 5.1LIMITS........................................................................................................................................................................7 5.2TESTPROCEDURE..........................................................................................................................................................7 5.3EUTRFEXPOSUREEVALUATION.....................................................................................................................................8 ReportNo.:BLA-EMC-202204-A9903 Page 4 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 1TESTSUMMARY TestitemTestRequirementTestMethodClass/SeverityResult RFExposure 47CFRPart 1.1307,Part 1.1310 CFR47Part 1.1310 CFR47Part1.1310PASS ReportNo.:BLA-EMC-202204-A9903 Page 5 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 2GENERALINFORMATION ApplicantPROSPECELECTRONICSofSC,Inc Address 3325SOUTHMORGANSPOINTROAD.MT.PLEASANT.SC29466-6856 USA ManufacturerPROSPECELECTRONICSofSC,Inc Address 3325SOUTHMORGANSPOINTROAD.MT.PLEASANT.SC29466-6856 USA FactoryAudioLinkCo.,Ltd. Address LeftSideofFloor4,BuildingB,No.2,LilianRoad,LianhuCommunity,Tangxia Town,DongguanCity,GuangdongProvince,523719,China. ProductNameBluetoothcontroller TestModelNo.INFBC4 3GENERALDESCRIPTIONOFE.U.T. HardwareVersionV1.0 SoftwareVersionN/A OperationFrequency:2402MHz-2480MHz ModulationType:GFSK,pi/4DQPSK,8DPSK ChannelSpacing:1MHz NumberofChannels:79 AntennaType:PCBAntenna AntennaGain:0dBi(Providedbytheapplicant) ReportNo.:BLA-EMC-202204-A9903 Page 6 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 4LABORATORYLOCATION Alltestswereperformedat: BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd. BuildingC,No.107,ShihuanRoad,ShiyanSub-District,BaoanDistrict,Shenzhen,GuangdongProvince, China Telephone:TEL:+86-755-28682673FAX:+86-755-28682673 Notestsweresub-contracted. ReportNo.:BLA-EMC-202204-A9903 Page 7 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 5RFEXPOSURECOMPLIANCEREQUIREMENT 5.1LIMITS AccordingtoFCCPart1.1310:Thecriterialistedinthefollowingtableshallbeusedto evaluatetheenvironmentimpactofhumanexposuretoradiofrequency(RF)radiationas specifiedinpart1.1307(b) F=FrequencyinMHz FriisFormula Friistransmissionformula:Pd=(Pout*G)/(4*Pi*R2) Where Pd=powerdensityinmW/cm2 Pout=outputpowertoantennainmW G=gainofantennainlinearscale Pi=3.1416 R=distancebetweenobservationpointandcenteroftheradiatorincm PdidthelimitofMPE,1mW/cm2.Ifweknowthemaximumgainoftheantennaandthe totalpowerinputtotheantenna,throughthecalculation,wewillknowthedistancer wheretheMPElimitisreached. 5.2TESTPROCEDURE SoftwareprovidedbyclientenabledtheEUTtotransmitandreceivedataatlowest,middleandhighest channelindividually. ReportNo.:BLA-EMC-202204-A9903 Page 8 of 8 BlueAsiaofTechnicalServices(Shenzhen)Co.,Ltd.Tel:+86-755-23059481Email:[email protected] 5.3EUTRFEXPOSUREEVALUATION AntennaGain:0dBi AntennaGain:ThemaximumGainmeasuredinfullyanechoicchamberis1inlinearscale. OutputPowerIntoAntenna&RFExposureEvaluationDistance: pi/4DQPSK（worsecase）: Channel Frequency (MHz) MaxConducted PeakOutput Power(dBm) OutputPower toAntenna (mW) PowerDensity atR=20cm (mW/cm 2 ) LimitResult Lowest24021.158 1.305570.00026 1.0PASS Note:RefertoreportNo.BLA-EMC-202204-A9902forEUTtestMaxConductedPeakOutputPowervalue. Thedistancer(4thcolumn)calculatedfromtheFriestransmissionformulaisfargreaterthan 20cmseparationRequirement ----ENDOFREPORT---- Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthis reportreferonlytothesample(s)tested.WithoutwrittenapprovalofBlueAsia,thisreportcan’tbe reproducedexceptinfull.

Page 1 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Add:Building C, No. 107, Shihuan Road, Shiyan Sub-District, Baoan District, Shenzhen, Guangdong Province, China Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TEST REPORT Product Name: Bluetooth controller Brand Mark: N/A Model No.: INFBC4 FCC ID: 2A2K9-INFBC4 Report Number: BLA-EMC-202204-A9902 Date of Sample Receipt: 2022/4/29 Date of Test: 2022/4/29 to 2022/5/26 Date of Issue: 2022/5/26 Test Standard: 47 CFR Part 15, Subpart C 15.247 Test Result:Pass Prepared for: PROSPEC ELECTRONICS of SC, Inc 3325 SOUTH MORGANS POINT ROAD. MT. PLEASANT. SC29466-6856 USA Prepared by: BlueAsia of Technical Services(Shenzhen) Co.,Ltd. Building C, No. 107, Shihuan Road, Shiyan Sub-District, BaoanDistrict, Shenzhen, Guangdong Province, China TEL: +86-755-23059481 Compiled by:Review by: Approved by:Date:2022/5/26 Report No.: BLA-EMC-202204-A9902 Page 2 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com REPORT REVISE RECORD Version No.DateDescription 002022/5/26Original Report No.: BLA-EMC-202204-A9902 Page 3 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com TABLE OF CONTENTS 1 TEST SUMMARY........................................................................................................................................ 5 2 GENERAL INFORMATION......................................................................................................................... 6 3 GENERAL DESCRIPTION OF E.U.T..........................................................................................................6 4 TEST ENVIRONMENT................................................................................................................................7 5 TEST MODE................................................................................................................................................7 6 MEASUREMENT UNCERTAINTY..............................................................................................................7 7 DESCRIPTION OF SUPPORT UNIT.......................................................................................................... 8 8 LABORATORY LOCATION.........................................................................................................................8 9 TEST INSTRUMENTS LIST........................................................................................................................9 10 ANTENNA REQUIREMENT......................................................................................................................13 10.1 C ONCLUSION.........................................................................................................................................................13 11 CONDUCTED SPURIOUS EMISSIONS...................................................................................................14 11.1 LIMITS................................................................................................................................................................14 11.2 BLOCK DIAGRAM OF TEST SETUP......................................................................................................................14 11.3 TEST D ATA...........................................................................................................................................................15 12 20DB BANDWIDTH...................................................................................................................................16 12.1 BLOCK DIAGRAM OF TEST SETUP......................................................................................................................16 12.2 TEST D ATA...........................................................................................................................................................16 13 CONDUCTED PEAK OUTPUT POWER.................................................................................................. 17 13.1 LIMITS................................................................................................................................................................17 13.2 BLOCK DIAGRAM OF TEST SETUP......................................................................................................................17 13.3 TEST D ATA...........................................................................................................................................................18 14 RADIATED SPURIOUS EMISSIONS........................................................................................................19 14.1 LIMITS................................................................................................................................................................19 14.2 BLOCK DIAGRAM OF TEST SETUP......................................................................................................................20 14.3 PROCEDURE.......................................................................................................................................................20 14.4 TEST D ATA...........................................................................................................................................................22 15 RADIATED EMISSIONS WHICH FALL IN THE RESTRICTED BANDS.................................................30 15.1 LIMITS................................................................................................................................................................30 Report No.: BLA-EMC-202204-A9902 Page 4 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com 15.2 BLOCK DIAGRAM OF TEST SETUP..................................…

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Report No.: BLA-EMC-202204-A9902 Page 66 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Band Edge(Hopping) NVNT 1-DH1 2480MHzAnt1 Hopping Ref Band Edge(Hopping) NVNT 1-DH1 2480MHzAnt1 Hopping Emission Report No.: BLA-EMC-202204-A9902 Page 67 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Band Edge(Hopping) NVNT 2-DH1 2402MHzAnt1 Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2402MHzAnt1 Hopping Emission Report No.: BLA-EMC-202204-A9902 Page 68 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Band Edge(Hopping) NVNT 2-DH1 2480MHzAnt1 Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2480MHzAnt1 Hopping Emission Report No.: BLA-EMC-202204-A9902 Page 69 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Band Edge(Hopping) NVNT 3-DH1 2402MHzAnt1 Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2402MHzAnt1 Hopping Emission Report No.: BLA-EMC-202204-A9902 Page 70 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Band Edge(Hopping) NVNT 3-DH1 2480MHzAnt1 Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2480MHzAnt1 Hopping Emission Report No.: BLA-EMC-202204-A9902 Page 71 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202204-A9902 Page 72 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Conducted RF Spurious Emission ConditionModeFrequency (MHz)AntennaMax Value (dBc)Limit (dBc)Verdict NVNT1-DH12402Ant1-34.16-20Pass NVNT1-DH12441Ant1-36.31-20Pass NVNT1-DH12480Ant1-37.25-20Pass NVNT2-DH12402Ant1-37.15-20Pass NVNT2-DH12441Ant1-34.8-20Pass NVNT2-DH12480Ant1-40.4-20Pass NVNT3-DH12402Ant1-43.24-20Pass NVNT3-DH12441Ant1-39.49-20Pass NVNT3-DH12480Ant1-34.83-20Pass Tx. Spurious NVNT 1-DH1 2402MHzAnt1 Ref Tx. Spurious NVNT 1-DH1 2402MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 73 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 1-DH1 2441MHzAnt1 Ref Tx. Spurious NVNT 1-DH1 2441MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 74 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 1-DH1 2480MHzAnt1 Ref Tx. Spurious NVNT 1-DH1 2480MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 75 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 2-DH1 2402MHzAnt1 Ref Tx. Spurious NVNT 2-DH1 2402MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 76 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 2-DH1 2441MHzAnt1 Ref Tx. Spurious NVNT 2-DH1 2441MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 77 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 2-DH1 2480MHzAnt1 Ref Tx. Spurious NVNT 2-DH1 2480MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 78 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 3-DH1 2402MHzAnt1 Ref Tx. Spurious NVNT 3-DH1 2402MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 79 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 3-DH1 2441MHzAnt1 Ref Tx. Spurious NVNT 3-DH1 2441MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 80 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Tx. Spurious NVNT 3-DH1 2480MHzAnt1 Ref Tx. Spurious NVNT 3-DH1 2480MHzAnt1 Emission Report No.: BLA-EMC-202204-A9902 Page 81 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Report No.: BLA-EMC-202204-A9902 Page 82 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Carrier Frequencies Separation ConditionModeAntennaHopping Freq1 (MHz) Hopping Freq2 (MHz) HFS (MHz) Limit (MHz) Verdict NVNT1-DH1Ant12441.11152442.13151.0201.011Pass NVNT2-DH1Ant12441.1312442.1090.9780.025Pass NVNT3-DH1Ant12441.0982442.14651.04850.833Pass CFS NVNT 1-DH1 2441MHzAnt1 Report No.: BLA-EMC-202204-A9902 Page 83 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com CFS NVNT 2-DH1 2441MHzAnt1 CFS NVNT 3-DH1 2441MHzAnt1 Report No.: BLA-EMC-202204-A9902 Page 84 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Number of Hopping Channel ConditionModeAntennaHopping NumberLimitVerdict NVNT1-DH1Ant17915Pass NVNT2-DH1Ant17915Pass NVNT3-DH1Ant17915Pass Hopping No. NVNT 1-DH1 2441MHzAnt1 Hopping No. NVNT 2-DH1 2441MHzAnt1 Report No.: BLA-EMC-202204-A9902 Page 85 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Hopping No. NVNT 3-DH1 2441MHzAnt1 Report No.: BLA-EMC-202204-A9902 Page 86 of 91 BlueAsia of Technical Services(Shenzhen) Co., Ltd. Tel: +86-755-23059481 Email: [email protected] www.cblueasia.com Dwell Time ConditionModeFrequency (MHz) AntennaPulse Time (ms) Total Dwell Time (ms) Burst Count Period Time (ms) Limit (ms) Verdict NVNT1-DH12441Ant10.364116.116…

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Product Name: Bluetooth controller Radiated Emissions (above 1GHz) Radiated Emissions (30MHz-1GHz)