2APU9-HRD-727Portable Mini Digital Display FM Receiver

OperatingInstructionsforDigitalDisplayFMReceiver (Model:HRD-727) ThankyouforpurchasingportableminidigitaldisplayFMreceiverofourcompany:HRD-727.This isasmallandexquisiteDSPFMradiowiththeretroMP3playerappearancewhichcanbeeasilycarried. ThisproductadoptsDSPdigitalprocessingtechnologychipanditcanreceivefrequencymodulationsignals stably.The1.1-inchLCDdisplayandtheintuitiveoperationbuttonsbringgreatconveniencetousers. Theradiohasthefollowingfunctionfeatures: *Ithastwostationstoragemodes,includingtheautomaticstationsearchandstoragemode/the manuallyandautomaticallystationsearchmode. *Ithas30memoryandstoragestations *Ithasthepower-offmemoryfunction; *Digitaldisplayfunction:Itcandisplaythefrequencyadjustmentpoints,volumelevelsandstation accessaddressnumber. Pleasereadthismanualbeforeyourusageandkeepitproperlyforfuturereference. Standardaccessoriesduringdelivery:PackagingboxesX1;instructionbookX1;hangingropeX1; earplugX1; 1.Productoutline: 2.DescriptionofLCDdisplayscreensymbols: 3.Externalviewandkeyfunctions: ① LCDdisplay ② poweron/poweroff ③ MODE:Automaticstationsearchandstorage/manualstationselection;conversionoftwotonetuningmodes ④ MEM:Manuallysave/accessthestation ⑤ —:volume-,selectthestation-,accessthestation- ⑥ +:volume+,selectthestation+,accessthestation+ ⑦ Batterycover ⑧ :3.5MMEarplug ⑨ Hangingrope 4.Functionoperationspecification: 4.1:Pressthebatterycoverindication:,pushawaythebatterycoverandinstallthetwoAAAbatteries(2X1.5VAAA) totheradiocorrectly;coverthebatterycover;beforeyouuseit,pleaseinsertthe3.5-mmheadsettotheradio headsethole“”(headsetisthereceivingantennaandmicrophoneoftheradio). 4.2:“”powerbutton: Pressthepowerbutton“”shortlyandtheradiowillbeopen;LCDwilldisplay“On”(meaning“poweron”); Whenthemachineison,pressthepowerbutton“”slightlyandtheradiowillbeoff. 4.3:MODE:Automaticstationsearchandstorage/manualstationselection,conversionoftwotonetuningmodes 4.3.1:Operationsforfullstationautomaticsearchandstoragefunctions: PresstheMODEbuttonforonesectionandtheradiowillenteritsautomaticstationsearchandstoragefunction: Duringthefullstationautomaticsearchandstorageprocess,“FM”characterwillbedisplayedonthetopleftcornerof theLCDandthe“PRESET”(meaning“presetthestation”)characterwillbedisplayedonthebottom.SCANwillflash andthefrequencywillbesearchedfromthelowestfrequencyof87.5MHzto108MHzautomatically.Duringthefull stationautomaticsearchandstorageprocess,ifyoupressanybutton,allfullstationautomaticsearchandstorage operationswillbestopped.Alltogether30stationscanbestored. Afterthefullstationautomaticsearchandstorageoftheaboveroundiscompleted,theradiowilldisplayandbroadcast thefirststationwithsignals. 4.3.2:Conversionofthemanualstationselectionandthetonetuningmode: EachtimeyouslightlypressMODEbutton,conversionoftwostatesof“FM”characterflashingand“FM”Always-On willbedisplayedonthetopleftcorneroftheLCD. *When“FM”characterflashes,manual+and-buttonsmeansfrequencyincreaseandfrequencyreduction. Manualstationselectionhastwomodes:manualstationselectionandautomaticstationsearchmode; Manualstationselection:eachtimeyouslightlypress+and-button,theradioincreasesanddecreasedaccordingtothe defaultsteppingvalueof0.1MHZ. Duringtheautomaticstationsearch,ifyoupress+and-button,theradiowillsearchforstationswithsignalsquickly; afterthat,itwillstopsearchingandbroadcastfrequencypointssearched. Userscanusebothoftheabovemethodstofindthestationthattheyneedquickly. *During“FM”Always-On,youcanmutuallyoperate+and-buttontoincreaseordecreasethevolume. Radiotonetuninglevel:00-15;16levelscanbeadjusted;userscanadjustthevolumelevelsoftheradioaccordingto theiractualdemands. Slightlypress+and-buttontoincreaseordecreasethevolumestepbystep.Longpressthe+and-buttonandyou willadjustthevolumequickly. Userscanadjustthevolumebyusingbothoftheabovemethods. 4.4:+and-button:increaseordecreasestationsselected;volumeincreaseordecrease;stationaccessnumberincreaseor decrease *Station-tuningmode:+,-button:increaseordecreaseFMfrequencypoints; *Tonetuningmode:+,-button:increaseordecreasevolume; *Stationaccessmode:+,-button:increaseordecreasestationaccessaddressnumber 4.5:MEMManuallysave/accessthestation *Manuallysavethestation:LongpressMEMbuttonandtheLCDwilldisplayP01...P30(whichreferstothe stationaddressnumber)andthe“PRESET”characterwillflash;press+and-buttonstoselectthestationstorage addressnumbers.Afterthestationaddressnumberisselected,pressMEMbuttonagaintoconfirmthatandcomplete themanualstationstoragesteps. (Note:IfyoudidnotpressMEMbuttontoconfirmthatwithinthreeseconds,itwilldefaultasyouhavegivenup storingthestation) *Manuallyaccessthestation:afterthestationsaresaved,pleaseslightlypresstheMEMbuttonandtheLCDwill displayPRESETP01...P30.Press+and-buttontoselectthestationthatyouneed. 5.Mattersneedingattention: Whenreceivingtheradio,iftheradiovolumebecomesunstableandthedisplayscreenturnsdarkandthereisafaintbattery symbolflashingabovetheMHzcharacter,itmeansthatthebatterypowerisalreadyinsufficientandthebatteryshallbe changedtimely. *Hint: 1)Don'tmixoldandnewbatteries; 2)Whenyoudonotuseradioforalongtime,pleaseremovethebatteryintimetoavoidbatteryleakageliquidfrom corrodinganddamagingtheradio. 3)Ifthebatteryleaks,pleaseuseasoftclothtocleantheelectrolyteinthebatterycompartmentbeforeyouinstallthe battery. 6.Maintechnicalparameters: Technicalindicators FrequencyreceivingrangeReceivingsensitivity FM:87.5-108MHz5dB Productdimension:80x28x20mm Battery:TwoAAAbatteries(2X1.5AAA) Minimumoperatingvoltage:2.2V Maximumpoweroutput:2.4MW Maximumcurrent:26MA Stereoseparation:≥32DB Distortiondegree:≤1% Externalearplugs:Φ3.5MM/32ΩX2 FCCStatement: Thisdevicecomplieswithpart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions: (1)Thisdevicemaynotcauseharmfulinterference,and (2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperation. ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttopart15of theFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidential insta…

Text truncated - open the document above for the full version.

ShenzhenHanrongdaElectronicCo.,Ltd. (2025.09.02) MiCOMLabsInc., 575BoulderCourt,Pleasanton, California94566,USA RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2APU9-HRD-727) [ShenzhenHanrongdaElectronicCo.,Ltd.](“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature) (Applicantprintedname)DanLing ShenzhenHanrongdaElectronicCo.,Ltd. (2025.09.02) MiCOMLabsInc., 575BoulderCourt,Pleasanton, California94566,USA RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2APU9-HRD-727) [ShenzhenHanrongdaElectronicCo.,Ltd.](“theapplicant”)certifiesthat,asofthedate ofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)DanLing

ShenzhenHanrongdaElectronicCo.,Ltd. (2025.09.02) MiCOMLabsInc., 575BoulderCourt,Pleasanton, California94566,USA RE:AttestationStatementsPart2.911(d)(5)(i)requestfor(FCCID:2APU9-HRD-727) [ShenzhenHanrongdaElectronicCo.,Ltd.](“theapplicant”)certifiesthatthe equipmentforwhichauthorizationissoughtisnot“covered”equipmentprohibited fromreceivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. Wealsocertifythat,asofthedateofthefilingoftheapplication,theequipmentdoes notutilizecyber-securityoranti-virussoftwarefromKasperskyLab,Inc,oranyofits successorsandassignees,whichisalsoonthe“coveredlist”. Sincerely, (Applicantsignature) (Applicantprintedname)DanLing ShenzhenHanrongdaElectronicCo.,Ltd. (2025.09.02) MiCOMLabsInc., 575BoulderCourt,Pleasanton, California94566,USA RE:AttestationStatementsPart2.911(d)(5)(ii)requestfor(FCCID:2APU9-HRD-727) [ShenzhenHanrongdaElectronicCo.,Ltd.](“theapplicant”)certifiesthat,asofthedate ofthefilingoftheapplication,theapplicantisnotidentifiedontheCoveredListasan entityproducing“covered”equipment. Sincerely, (Applicantsignature) (Applicantprintedname)DanLing

ShenzhenHanrongdaElectronicCo.,Ltd. AgentAuthorization Company:ShenzhenHanrongdaElectronicCo.,Ltd. Address:No.21,LiYuanXia,XinLiRoad,PingHuTown,LongGangDistrictShenzhen ProductName:PortableMiniDigitalDisplayFMReceiver ModelNumber(s):HRD-727,ZWS-727,SWD-727 ProductDescription:PortableMiniDigitalDisplayFMReceiver WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2025.09.02 Name:DanLing Title:Merchandiser Company:ShenzhenHanrongdaElectronicCo.,Ltd.

ShenzhenHanrongdaElectronicCo.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2025.09.02 Subject;RequestforConfidentiality FCCID:2APU9-HRD-727 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram PartsList OperationalDescription Tune-upProcedure Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); ExternalPhotos TestSetupPhotos InternalPhotos UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature:从 Name:DanLing Title:Merchandiser

Modeldifferenceletter 2025.09.02 Dear: ThisisanewApplicationfromShenzhenHanrongdaElectronicCo.,Ltd. ModelNo.: HRD-727,ZWS-727,SWD-727 Onlythemodel “ HRD-727 ” wastested,Theirelectricalcircuitdesign,layout, componentsusedandinternalwiringareidentical, OnlythemodelnameandAppearancecolourisdifferent. Thankyouforyourcooperation! Yourssincerely, Signatory: Sincerely, Signature: Name:DanLing Title:Merchandiser

ModelNo.:HRD-727 PHOTOOFTHEENTIRESAMPLE FRONTVIEWOFSAMPLE ModelNo.:HRD-727 BACKVIEWOFSAMPLE LEFTVIEWOFSAMPLE ModelNo.:HRD-727 RIGHTVIEWOFSAMPLE TOPVIEWOFSAMPLE ModelNo.:HRD-727 BOTTOMVIEWOFSAMPLE

FCCID:2APU9-HRD-727

ModelNo.:HRD-727 Page1of2 INTERNALPHOTOOFSAMPLE INTERNALPHOTOOFSAMPLEPCB ModelNo.:HRD-727 Page2of2 INTERNALPHOTOOFSAMPLEPCB

Report No. MTEB25090017 Page 1 of 24 Test Report Applicant:Shenzhen Hanrongda Electronics Co.,Ltd Product Name:Portable Mini Digital Display FM Receiver Brand Name:HanRongDa FCC ID:2APU9-HRD-727 Model No.:HRD-727, ZWS-727, SWD-727 Remark: Only the model“HRD-727”was tested, Their electrical circuit design, layout, components used and internal wiring are identical, Only the model name and Appearance colour is different. Date of Receipt :Aug.29,2025 Date of Test:Sep.01,2025 Date of Report:Sep.02,2025 Prepared by:Shenzhen Most Technology Service Co., Ltd. The testing has been performed on the submitted samples and found in compliance with the council FCC Rules and Regulations Part 15 Subpart B. Shenzhen Most Technology Service Co., Ltd. East A, 1/F., New Aolin Factory Buiding, Langshan Erlu, North Area, Hi-Tech Industrial Park, Nanshan District, Shenzhen, Guangdong, China Phone: 86-755-8602 6850 Fax: 86-755-2601 3350 http://www.szmost.com Report No. MTEB25090017 Page 2 of 24 TABLE OF CONTENTS DescriptionPage Test Report Declaration..........................................................................4 1. GENERAL INFORMATION.....................................................................................................................4 1.1. Description of Device (EUT)................................................................................................................................ 4 1.2. Operational Mode(s) of EUT.................................................................................................................................4 1.3. Test Voltage(s) of EUT.........................................................................................................................................4 2. LABORATORY INFORMATION............................................................................................................5 2.1. Laboratory Name...................................................................................................................................................5 2.2. Location.................................................................................................................................................................5 2.3. Test facility............................................................................................................................................................5 2.4. Measurement Uncertainty..................................................................................................................................... 5 3. SUMMARY OF TEST RESULTS.............................................................................................................6 4. BLOCK DIAGRAM OF TEST SETUP....................................................................................................7 4.1. Block Diagram of connection between EUT and simulation-EMI....................................................................... 7 5. TEST INSTRUMENT USED.....................................................................................................................8 5.1. For Conducted Disturbance at Mains Terminals Emission Test...........................................................................8 5.2. For Radiation Test (In Anechoic Chamber)(Below 1000MHz)............................................................................8 5.3. For Radiation Test (In Anechoic Chamber)( Above 1000MHz)...........................................................................8 6. CONDUCTED DISTURBANCE AT MAINS TERMINALS TEST......................................................9 6.1. Configuration of Test System................................................................................................................................9 6.2. Test Standard.........................................................................................................................................................9 6.3. Power Line Conducted Disturbance at Mains Terminals Limit............................................................................9 6.4. Test Procedure.......................................................................................................................................................9 6.5. Conducted Disturbance at Mains Terminals Test Results...................................................................................10 7. RADIATED DISTURBANCE TEST.......................................................................................................11 7.1. Configuration of Test System..............................................................................................................................11 7.2. Test Standard.......................................................................................................................................................11 7.3. Radiated Disturbance Limit.................................................................................................................................11 7.4. Test Procedure.....................................................................................................................................................11 7.5. Radiated Disturbance Test Results......................................................................................................................12 APPENDIX I(2 Pages) APPENDIX II (Test Photos)(1 Page) APPENDIX III (Photos of the EUT)(6 Pages) Report No. MTEB25090017 Page 3 of 24 TEST REPORT VERIFICATION Report NumberMTEB25090017 Applicant Shenzhen Hanrongda Electronics Co.,Ltd No.21,LiYuan Xia,XinLi Road,PingHu Town,LongGang District Shenzhen Manufacturer Shenzhen Hanrongda Electronics Co.,Ltd No.21,LiYuan Xia,XinLi Road,PingHu Town,LongGang District Shenzhen Product Product NamePortable Mini Digital Display FM Receiver Model No.HRD-727 Power SupplyDC 3V by Batteries Test ResultThe EUT was found compliant with the requirement(s) of the standards…

Text truncated - open the document above for the full version.

ModelNo.:HRD-727 RETESTSETUP