2BKPE-CS-P80A-BT8 inch Subwoofer

FCC WARNING This device complies with part 15 of the FCC Rules. Operation is subject to the follow ing two conditions : (1) this device may not cause harmful interference, and (2) this device must accept any interference received, inc luding interference that may cause undesired operation. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residentia l installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or televis ion reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technic ian for help. To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be insta lled and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.

TONGXIANGSENONAUDIOCO.,LTD. 2.911(d)(5)(i)EquipmentTypeAttestationv1.2 Section2.911(d)(5)(i)Certification–EquipmentType Companyname:TONGXIANGSENONAUDIOCO.,LTD. Address:NO.37WESTPARKROAD,TUDIAN,TONGXIANG,ZHEJIANG,China ProductName:8inchSubwoofer FCCID:2BKPE-CS-P80A-BT Model(s):CS-P80A-BT,CS-P80A-BT-U,CS-P80A-BTLR 2.911(d)(5)(i)EquipmentType We,[TONGXIANGSENONAUDIOCO.,LTD.](“theapplicant”)certifythattheequipmentforwhich authorizationissoughtthroughcertificationisnot: Prohibitedfromreceivinganequipmentauthorizationpursuantto§2.903;oftheFCCrules. Identifiedasanequipmenttypeinthe“CoveredList” NOTE1 Yourssincerely, Name:JoyceXuDate:2024.9.3 TitleandCompanyname:Manager/TONGXIANGSENONAUDIOCO.,LTD. NOTE1 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

TONGXIANGSENONAUDIOCO.,LTD. 2.911(d)(5)(ii)ApplicantAttestationv1.3 Section2.911(d)(5)(ii)Certification–Applicant(CoveredList) Companyname:TONGXIANGSENONAUDIOCO.,LTD. Address:NO.37WESTPARKROAD,TUDIAN,TONGXIANG,ZHEJIANG,China ProductName:8inchSubwoofer FCCID:2BKPE-CS-P80A-BT Model(s):CS-P80A-BT,CS-P80A-BT-U,CS-P80A-BTLR 2.911(d)(5)(ii)Applicantfiling We,[TONGXIANGSENONAUDIOCO.,LTD.](“theapplicant”)certifythat,asofthedateofthefiling oftheapplication,theapplicantisnotidentified NOTE1 onthe“CoveredList” NOTE2 ,established pursuantto§1.50002ofthischapter,asanentityproducingcoveredcommunicationsequipment. Yourssincerely, Name:JoyceXuDate:2024.9.3 TitleandCompanyname:Manager/TONGXIANGSENONAUDIOCO.,LTD. NOTE1 Deleteoptionnotapplicabletothisapplication. NOTE2 “CoveredList”;istheListofEquipmentandServicesCoveredBySection2ofTheSecureNetworksAct,availableat https://www.fcc.gov/supplychain/coveredlist References; 1)986446D01CoveredEquipmentv01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2)FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

TONGXIANGSENONAUDIOCO.,LTD. 2.911(d)(7)USAAgentv1.5 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:TONGXIANGSENONAUDIOCO.,LTD. Address:NO.37WESTPARKROAD,TUDIAN,TONGXIANG,ZHEJIANG, China FCCID:2BKPE-CS-P80A-B Product Name:8 inch Subwoofer T Model(s):CS-P80A-BT,CS-P80A-BT-U,CS-P80A-BTLR 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[TONGXIANGSENONAUDIOCO.,LTD.](“theapplicant”)designate[Stone TradingLimited] NOTE1 forthepurposeofacceptingserviceofprocessonbehalfofthe applicant. Applicantconsent:Weacknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeour acceptanceofourobligationtomaintainanagentforserviceofprocessintheUnited Statesfornolessthanoneyearaftereitherwethegranteehavepermanently terminatedallmarketingandimportationoftheapplicableequipmentwithintheU.S., orattheconclusionofanyCommission-relatedadministrativeorjudicialproceeding involvingtheequipment,whicheverislater. Agentobligation:Weacknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,orattheconclusionofanyCommission-relatedadministrativeor judicialproceedinginvolvingtheequipment,whicheverislater. USAAgent Companyname:StoneTradingLimited USAAddress:6547NAcademyBlvd #2266,ColoradoSprings,CO80918,United States FRNNumber ： 0033401936 ContactName:DongmeiFang TelephoneNo:+12134573118 Email:[email protected] Applicant Companyname:TONGXIANGSENON AUDIOCO.,LTD. Address:NO.37WESTPARKROAD, TUDIAN,TONGXIANG,ZHEJIANG, China GranteeFRNNumber：0035885979 FCCGranteeCode:2BKPE ContactName:JoyceXu TelephoneNo:13867318009 Email:[email protected] Signature: Title:Manager Signature: TONGXIANGSENONAUDIOCO.,LTD. 2.911(d)(7)USAAgentv1.5 Title:Manager Date:2024.9.3Date:2024.9.3 NOTE1:AnapplicantlocatedintheUnitedStatesmaydesignateitselfastheagentforservice ofprocess. Reference;FederalRegisterdocument2022-28263publishedon02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

TONGXIANGSENONAUDIOCO.,LTD. AgentAuthorization Company:TONGXIANGSENONAUDIOCO.,LTD. Address:NO.37WESTPARKROAD,TUDIAN,TONGXIANG,ZHEJIANG, China ProductName:8inchSubwoofer ModelNumber(s):CS-P80A-BT,CS-P80A-BT-U,CS-P80A-BTLR ProductDescription:8”Subwoofer WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2024.9.3 Name:JoyceXu Title:Manager Company:TONGXIANGSENONAUDIOCO.,LTD.

TONGXIANGSENONAUDIOCO.,LTD. ModelDifference Productdescription:8inchSubwoofer Modelname: CS-P80A-BT CS-P80A-BT-U,CS-P80A-BTLR TradeName:N/A FCCID:2BKPE-CS-P80A-BT AllthemodelarethesamecircuitandRFmodule,onlythemodelnamearedifferent. Regards Sincerely Client’ssignature: Client’sname/title:JoyceXu(Manager) Contactinformation/address:NO.37WESTPARKROAD,TUDIAN,TONGXIANG, ZHEJIANG, CHINA

TONGXIANGSENONAUDIOCO.,LTD. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2024.9.3 Subject;RequestforConfidentiality FCCID:2BKPE-CS-P80A-BT 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: Name:JoyceXu Title:Manager

EUT PHOTO(External Photos)

Label and label location FCC ID LABEL: High:2cm Wide:3cm Label Location: 8 inch Subwoofer CS-P80A-BT FCC ID:2BKPE-CS-P80A-BT

EUT PHOTO(Internal Photos) ANT ※※※※※※※※※※ END OF REPORT

FCC ID:2BKPE-CS-P80A-BT RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation BT mode Mode Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result GFSK 0.766 1.19 0.000325 1.0 PASS π/4-DQPSK 0.486 1.12 0.000305 1.0 PASS 8-DPSK 0.871 1.22 0.000333 1.0 PASS Remark: antenna gain=1.37dBi

ANTENNA SPECIFICATION V1.0 CUSTOMER NAME: TONGXIANG SENON AUDIO CO.,LTD. PRODUCT NAME: BT Antenna CUSTOMER P /N: ANT-03 一 二 三 、------- - 、-------- 、-------- ----------- ----------- ----------- Co ----------- ----------- ----------- onten ----------- ----------- ----------- nts ----------- ----------- ----------- ----------S --------- S ---------Te Specificat Size draw est Repo tion wing rt 一、Specification 主要技术参数 Main technical parameter 频率范围(MHz) 2400-2500 Frequency Range(MHz) 2400-2500 阻抗(ohm) 50 Impedance(ohm) 50 增益(dBi) 1.37 Gain(dBi) 1.37 极性 水平和垂直 Polarization Horizontal and Vertical 方向性 全向性 Azimuth Beam Pattern Omni-directional 天线类型 PCB Antenna plate PCB 物理性能 Physical Properties 天线材料 F R4 Antenna cover FR4 工作温度 -10--+80 Operating Temp -10-- +80 保存温度 +10--+20 Storage Temp +10--+20 二、 、Size drrawing 三、Test Report Measurements summary

Project No.: ZKT-24082710609E Page 1 of 66 FCC TEST REPORT FCC ID:2BKPE-CS-P80A-BT Report Number. ................................ : ZKT-24082710609E Date of Test ........................................ Aug. 23, 2024 to Aug. 30, 2024 Date of issue .................................... : Aug. 30, 2024 Total number of pages ....................... 66 Test Result ...................................... : PASS Testing Laboratory. ........................ : Shenzhen ZKT Technology Co., Ltd. Address .......................................... : 1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Applicant's name .......................... : TONGXIANG SENON AUDIO CO.,LTD. Address .......................................... : NO.37 WEST PARK ROAD, TUDIAN, TONGXIANG, ZHEJIANG, CHINA Manufacturer's name ................... : TONGXIANG SENON AUDIO CO.,LTD. Address .......................................... : NO.37 WEST PARK ROAD, TUDIAN, TONGXIANG, ZHEJIANG, CHINA Test specification: Standard ........................................... : FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test procedure ................................. : / Non-standard test method .............. : N/A Test Report Form No. ..................... : / Test Report Form(s) Originator ..... : ZKT Testing Master TRF .................................... : Dated: 2020-01-06 This device described above has been tested by ZKT, 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. This report shall not be reproduced except in full, without the written approval of ZKT, this document may be altered or revised by ZKT, personal only, and shall be noted in the revision of the document. Product name ................................. : 8 inch Subwoofer Trademark ...................................... : N/A Model/Type reference ...................... : CS-P80A-BT CS-P80A-BT-U,CS-P80A-BTLR Ratings ............................................. : Input: DC 12V 45-250Hz Project No.: ZKT-24082710609E Page 2 of 66 Testing procedure and testing location: Testing Laboratory ................................... : Shenzhen ZKT Technology Co., Ltd. Address ...................................................... :1/F, No. 101, Building B, No. 6, Tangwei Community Industrial Avenue, Fuhai Street, Bao'an District, Shenzhen, China Jim Liu Tested by (name + signature) .................... : Jackson Fang Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-24082710609E Page 3 of 66 Table of Contents Page TABLE OF CONTENTS ..................................................... 3 1. VERSION ............................................................... 5 2. TEST SUMMARY ........................................................ 6 2.1 TEST FACILITY ......................................................... 7 2.2 MEASUREMENT UNCERTAINTY ......................................... 7 3. GENERAL INFORMATION ................................................ 8 3.1 GENERAL DESCRIPTION OF EUT ........................................ 8 3.2 Test Setup Configuration ................................................. 10 3.3 Support Equipment ...................................................... 10 3.4 Test Mode ............................................................. 10 4. EMC EMISSION TEST ................................................... 13 4.1 Conducted emissions .................................................... 13 4.1.1 POWER LINE CONDUCTED EMISSION Limits ........................... 13 4.1.2 TEST PROCEDURE ................................................... 13 4.1.3 DEVIATION FROM TEST STANDARD ................................... 13 4.1.4 TEST SETUP ......................................................... 14 4.1.5 EUT OPERATING CONDITIONS ........................................ 14 4.1.6 Test Result ........................................................... 15 4.2 Radiated emissions ..................................................... 17 4.2.1 Radiated Emission Limits ............................................... 17 4.2.2 TEST PROCEDURE ................................................... 17 4.2.3 DEVIATION FROM TEST STANDARD ................................... 18 4.2.4 TEST SETUP ......................................................... 18 4.2.5 EUT OPERATING CONDITIONS ........................................ 19 4.2.6 TEST RESULTS ...................................................... 19 5. RADIATED BAND EMISSION MEASUREMENT ............................ 28 5.1 Test Requirement: ...................................................... 28 5.2 TEST PROCEDURE .................................................... 28 5.3 DEVIATION FROM TEST STANDARD .................................... 29 5.4 TEST SETUP .......................................................... 29 5.5 EUT OPERATING CONDITIONS ......................................... 29 5.6 TEST RESULT ......................................................... 30 6. CONDUCTED BAND EDGE AND SPURIOUS EMISSION .................... 32 6.1 Limit ................................................................... 32 6.2 Test Setup ............................................................. 32 6.3 Test procedure ......................................................... 32 6.4 DEVIATION FROM STANDARD .......................................... 32 6.5 Test Result ............................................................. 33 7. 20DB OCCUPIED BANDWIDTH .......................................... 42 7.1 Test Setup ............................................................. 42 7.2 Limit ................................................................... 42 7.3 Test procedure ......................................................... 42 7.4 DEVIATION…

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EUT TEST PHOTO