2A7R5-LOUD-MAXPORTABLE BLUETOOTH SPEAKER

Remark: Auracast indicator lights may vary slightly due to different user operations glowing off • Click twice to switch folder in the USB flash. • Long press to turn off /on the pulse lights. • Short press to change the pulse lights. TM DISCONNECT BLUETOOTH 2402 MHz-2480 MHz Bluetooth tranmitttter frquency range BT/AUX IN/USB-A/IPX6/PD IN&OUT(45W) Function IPX6 Waterproof 19.57”x 10.78” x 8.03” Product dimentions (W*H*D) 6200g Net weight 551*251*316mm Packaging dimentions (W*H*D) 7550g Gross weight 45°C Maximum operation temperature AC power charging cable Cable type 1.5m Cable length V 5.4Bluetooth version PORTABLE BLUETOOTH SPEAKER Dynamic Power: 500 Watts Product name Output 40HZ-20kHz Frequency response ≥85db SN (Signal to noise ratio) About 2.5hours Up to 15 hours (dependent on volume and audio content) Playing time Specifications

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission's Rules (47 C.F.R.) we attest as follows for the product listed below: Model name both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant the point of contact provides the physical U.S. address and email as listed below both parties maintaln the requirements of this agreement without expiratron date Robert Diaz 302 Hanmore lndustrial Parl<way, Harlingen, TX78550, USA

Covered Equipment Attestation Letter For Certification Service in the USA '.r Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(dx5)(i)-(ii) of the Commission's Rules (47 C.F.R.) we attest as follows for the product listed below: Model name 2A7R5-LOUD-MAX We, Applicant Company Name: DB RESEARCH L.L.P Address: 302 Hanmore Industrial Parkway, Harlingen, TX7B550, USA Phone: 956421,4200 certify that the equipment for which authorization is sought is not "covered" equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, lnc. or any of ist successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing "covered" equipment. lf you have any questions, please feel free to contact us at the address shown below. / Sincerely, Name / Title: Robert Diaz/Manager Company: DB RESEARCH L.L.P Address:302 Hanmore lndustrial Parkway, Harlingen, TX78550, USA Phone: 95642L4200 Fax: N/A E-Mail : [email protected] Signature

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID Model name 2A7R5-LOUD-MAX LOUD-MAX Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons: Compliance Evaluation process Results Inherent compliance The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software Compliance The memory used does not allow the running the cybersecurity and/or anti-virus software Compliance The storage capacity does not allow the running the cybersecurity and/or anti-virus software Compliance The operating system used is not capable of running the cybersecurity and/or anti-virus software Compliance No inherent compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen Huaxia Testing Technology Co., Ltd Contact Name: Yoyo Zhou Address: 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China Phone: +86-755-26648642 Email: [email protected] Signature: Date: 2026-06-24

Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs 50.457 and 0.459 of the Commission's Rules (47 C.F.R.) and Section 5552(b)(4) of the Freedom of lnformation Act, we request confidentiality for the documentation of the following products: Model name For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: o the Operational Description o the Block Diagram o the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Printed Name of Signee:Robert Diaz Company:DB RESEARCH L.L.P Address:302 Hanmore lndustrial Parkway, Harlingen, TX78550, USA E ma i I : RDiaz @ d bd rive. net Sincerely, Signature Date: July 6,2026

Externalphotos FCC ID: 2A7R5-LOUD-MAX

Model No.: LOUD-MAX Power supply: AC~100-240V 50/60Hz Power output :500W Battery : 7.4V 9000mAh FCC ID:2A7R5-LOUD-MAX Made in China

Internalphotos FCC ID: 2A7R5-LOUD-MAX Antenna

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 RFExposureEvaluationReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260500986E-02 Applicant:DBRESEARCHL.L.P AddressofApplicant:302HanmoreIndustrialParkway,Harlingen,TX78550,USA EquipmentUnderTest(EUT): EUTName:PORTABLEBLUETOOTHSPEAKER ModelNo.:LOUD-MAX TestModelNo.:LOUD-MAX BrandName:DBDRIVE FCCID:2A7R5-LOUD-MAX Standards: 47CFRPart1.1307 47CFRPart2.1093 KDB447498D04InterimGeneralRFExposureGuidancev01 DateofReceipt:2026-05-15 DateofTest: 2026-05-15to2026-05-26 DateofIssue:2026-06-24 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD. ReportNo.:CQASZ20260500986E-02 Page:2of7 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260500986E-02Rev.01 Initialreport 2026-06-24 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD. ReportNo.:CQASZ20260500986E-02 Page:3of7 2Contents Page 1VERSION............................................................................................................................................................................2 2CONTENTS........................................................................................................................................................................3 ..................................................................................................................................................................................................3 3GENERALINFORMATION..............................................................................................................................................4 3.1CLIENTINFORMATION...................................................................................................................................................4 3.2GENERALDESCRIPTIONOFEUT...................................................................................................................................4 3.3GENERALDESCRIPTIONOFBT......................................................................................................................................4 4SAREVALUATION...........................................................................................................................................................5 4.1RFEXPOSURECOMPLIANCEREQUIREMENT.................................................................................................................5 4.1.1StandardRequirement......................................................................................................................................5 4.1.2Limits....................................................................................................................................................................5 4.1.3EUTRFExposure..............................................................................................................................................7 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD. ReportNo.:CQASZ20260500986E-02 Page:4of7 3GeneralInformation 3.1ClientInformation Applicant:DBRESEARCHL.L.P AddressofApplicant:302HanmoreIndustrialParkway,Harlingen,TX78550,USA Manufacturer:ShenzhenSoundPulseTechnologyCo.,Ltd. AddressofManufacturer:East4FBuild#5ChangyiIndustryZone,DalangStreet,Longhua,Shenzhen, China518109 Factory:ShenzhenSoundPulseTechnologyCo.,Ltd. AddressofFactory:East4FBuild#5ChangyiIndustryZone,DalangStreet,Longhua,Shenzhen, China518109 3.2GeneralDescriptionofEUT ProductName: PORTABLEBLUETOOTHSPEAKER ModelNo.: LOUD-MAX TestModelNo.: LOUD-MAX TradeMark: DBDRIVE SoftwareVersion: V1.1 HardwareVersion: V3.5 PowerSupply: Li-ionbatteryDC7.4V9000mAh,ChargebyAC100-240V50/60HZ 3.3GeneralDescriptionofBT OperationFrequency:2402MHz~2480MHz ModulationType:GFSK,π/4DQPSK,8DPSK TransferRate:1Mbps/2Mbps/3Mbps NumberofChannel:79 ProductType:MobilePortableFixLocation AntennaType: PCBantenna AntennaGain: -0.58dBi SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD. ReportNo.:CQASZ20260500986E-02 Page:5of7 4SAREvaluation 4.1RFExposureComplianceRequirement 4.1.1StandardRequirement 447498D04InterimGeneralRFExposureGuidancev01 3.2.SARTestReductionGuidance SARtestreductionprocedures[Glossary]allowusingaparticularsetoftestdataasrepresentative ofother,similar,testconditions.Thismaybeappliedfordatawithindifferenttestpositions(e.g.body, head,extremity),wirelessmodes(e.g.Wi-Fi,cellular),andfrequencybands.Thistestreductionprocess providesfortheuseoftestdataforonespecificchannel,whilereferencingtothosedatafordemonstrating complianceinotherrequiredchannelsforeachtestpositionofanexposurecondition,withintheoperating modeofafrequencyband.Thisislimitedspecificallytowhenthereported1-gor10-gSARforthemid- bandorhighestoutputpowerchannelmeetsanyofthefollowingconditions. 4.1.2Limits SAR-basedthresholdsarederivedbasedonfrequency,power,andseparationdistanceoftheRF source.Theformuladefinesthethresholdsingeneralforeitheravailablemaximumtimeaveragedpoweror maximumtime-averagedERP,whicheverisgreater. IftheERPofadeviceisnoteasilydetermined,suchasforaportabledevicewithasmallform factor,theapplicantmayusetheavailablemaximumtime-averagedpowerexclusivelyifthe deviceantennaorradiatingstructuredoesnotexceedanelectricallengthofλ/4. Asfordeviceswithantennasoflengthgreaterthanλ/4wherethegainisnotwelldefined,but alwayslessthanthatofahalf-wavedipole(lengthλ/2),theavailablemaximumtime-averaged powergeneratedbythedevicemaybeusedinplaceofthemaximumtime-averagedERP,where thatvalueisnotknown. Thesepa…

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Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2400MHz2500MHz2400MHz2400MHz 2500MHz Center Frequency -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dB PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Antenna Photo & Length (mm) address：No. 333, Kexing Road, Xiangzhou District, Zhuhai City Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Gain(dB) Frequency (MHz) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD 102A,102B,Building2,ShanghenglangNewIndustrialZone,ShanghenglangCommunity, DalangStreet,LonghuaDistrict,Shenzhen,Guangdong,People’sRepublicofChina,518000 Telephone:+86-755-26648640 Fax:+86-755-26648637 Website:www.cqa-cert.com ReportTemplateVersion:V06 ReportTemplateRevisionDate:2026-01-30 TestReport Thetestreportiseffectiveonlywithbothsignatureandspecializedstamp,Theresult(s)showninthisreportreferonlyto thesample(s)tested.WithoutwrittenapprovalofCQA,thisreportcan’tbereproducedexceptinfull. ReportNo.:CQASZ20260500986E-01 Applicant:DBRESEARCHL.L.P AddressofApplicant:302HanmoreIndustrialParkway,Harlingen,TX78550,USA EquipmentUnderTest(EUT): Product: PORTABLEBLUETOOTHSPEAKER ModelNo.: LOUD-MAX TestModelNo.:LOUD-MAX BrandName: DBDRIVE FCCID: 2A7R5-LOUD-MAX Standards:47CFRPart15,SubpartC KDB558074D0115.247MeasGuidancev05r02 ANSIC63.10:2020 DateofReceipt:2026-05-15 DateofTest: 2026-05-15to2026-05-26 DateofIssue:2026-06-24 TestResult:PASS* *Intheconfigurationtested,theEUTcompliedwiththestandardsspecifiedabove. TestedBy: (LewisZhou) ReviewedBy: (TimoLei) ApprovedBy: (JackAi) SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500986E-01 Page:2of86 1Version RevisionHistoryOfReport ReportNo.Version Description IssueDate CQASZ20260500986E-01Rev.01 Initialreport 2026-06-24 SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500986E-01 Page:3of86 2TestSummary TestItemTestRequirementTestmethodResult AntennaRequirement47CFRPart15.203/PASS ACPowerLineConducted Emission 47CFRPart15,SubpartCSection 15.207 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS ConductedPeakOutput Power 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS 20dBOccupiedBandwidth47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS CarrierFrequencies Separation 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS HoppingChannelNumber47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS DwellTime47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS PseudorandomFrequency HoppingSequence 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Band-edgeforRF ConductedEmissions 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RFConductedSpurious Emissions 47CFRPart15.247 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS RadiatedSpurious emissions 47CFRPart15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS Restrictedbandsaround fundamentalfrequency (RadiatedEmission) 47CFRPart15.205/15.209 ANSI C63.10-2020+Cor. 1-2023+C63.10a-2024+ ErratatoC63.10a-2024 PASS SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500986E-01 Page:4of86 Remark: Thetestedsample(s)andthesampleinformationareprovidedbytheclient. Tx:InthiswholereportTx(ortx)meansTransmitter. Rx:InthiswholereportRx(orrx)meansReceiver. RF:InthiswholereportRFmeansRadiatedFrequency. CH:InthiswholereportCHmeanschannel. Volt:InthiswholereportVoltmeansVoltage. Temp:InthiswholereportTempmeansTemperature. Humid:InthiswholereportHumidmeanshumidity. Press:InthiswholereportPressmeansPressure. N/A:Inthiswholereportnotapplication SHENZHENHUAXIATESTINGTECHNOLOGYCO.,LTD ReportNo.:CQASZ20260500986E-01 Page:5of86 3Contents Page 1VERSION..........................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................3 3CONTENTS......................................................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1CLIENTINFORMATION.................................................................................................................................................6 4.2GENERALDESCRIPTIONOFEUT.................................................................................................................................6 4.3ADDITIONALINSTRUCTIONS........................................................................................................................................8 4.4TESTENVIRONMENT...................................................................................................................................................9 4.5DESCRIPTIONOFSUPPORTUNITS...............................................................................................................................9 4.6TESTCONFIGURATION................................................................................................................................................9 4.7STATEMENTOFTHEMEASUREMENTUNCERTAINTY..................................................................................................10 4.8TESTLOCATION........................................................................................................................................................11 4.9TESTFACILITY..........................................................................................................................................................11 4.10ABNORMALITIESFROMSTANDARDCONDITIONS....................................................................................................11 4.11OTHERINFORMATIONREQUESTEDBYTHECUSTOMER..........................................................................................11 4.12EQUIPMENTLIST................................................................................................................................................…

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Setupphotos 1Photographs-EUTTestSetup 1.1RadiatedEmission 9KHz~30MHz: 30MHz~1GHz: FCC ID: 2A7R5-LOUD-MAX Above1GHz: 1.2ConductedEmission 1.3RFConductedmeasurement