2BHXL-B8371MP3BLMarine Stereo Receiver

Section Company n Address: R Street, Baiy Product Na FCC ID: 2B Model(s): B B-8427MP5 B-8385, B-8 2.911(d)(5 ) We, [guan g which autho  Pro  Ide n Yours sinc e Name: Kua Title: CEO Company n Signature: NOTE 1 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal R e https://www.fe munications-s gu 2.911(d) name: guan Room 602 qi yun district, ame: Marine BHXL-B837 B-8371MP3 5-BL, B-825 8387, B-838 )(i) Equipm gzhoukaituo orization is hibited fro m ntified as an erely, ang Jiamin name: guan ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t angzhou )(5)(i) Ce ngzhoukaitu iangsheng b Guangzho e Stereo Re 1MP3BL -BL, B-837 1 58-BL, B-84 89, B-8391 ment Type oqichepeijia sought thr o m receiving n equipmen ngzhoukaitu of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the ukaituoq ertificatio oqichepeijia business bu u, China eceiver 1MP5-BL, B 415, B-8273 , B-8393, B nyouxiang o ough certific an equipme nt type in the oqichepeiji a and Services C list SearchResul t 63 published o nts/2023/02/06 qichepei on – Equi anyouxiang uilding, No. B-8415A-BL 3, B-8415A, -8395, B-8 3 ongsi] (“the cation is not ent authoriz e “Covered anyouxiang Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ ijianyoux 2. ipment T gongsi 168, Jiang x L, B-8273-B B-8371, B- 397, B-8399 applicant”) t: zation pursu List” NOTE 1 gongsi ection 2 of Th witch=P&id=32 /protecting-ag xiangon 911 (d)(5)(i) Eq Type xia North 1s BL, B-8341M -8427, B-83 9, B-8341 certify that uant to § 2.9 Date: J e Secure Netw 5672 ainst-national - ngsi quipment Type A st Road, Hu MP3-BL, 380, B-8381 the equipm 903; of the F Jul. 29, 202 works Act, ava -security-threa Attestation v1.2 angshi 1, B-8383, ment for FCC rules. 4 ailable at ats-to-the-com 2 m

Section Company n Address: R Street, Baiy Product Na FCC ID: 2B Model(s): B B-8427MP5 B-8385, B-8 2.911(d)(5 ) We, [guang filing of the pursuant t o Yours sinc e Name: Ku a Title: CEO Company n Signature: NOTE 1 Delete option NOTE 2 “Covered List https://www.f c References; 1) 986446 D 0 https://apps.fc 2) Federal R e https://www.fe munications-s gu 2.911(d) name: guan Room 602 qi yun district, ame: Marine BHXL-B837 B-8371MP3 5-BL, B-825 8387, B-838 )(ii) Applica gzhoukaituo application o §1.50002 erely, ang Jiamin name: guan not applicable ”; is the List o cc.gov/supplyc 01 Covered Eq cc.gov/oetcf/kd egister docume ederalregister. supply-chain-t angzhou )(5)(ii) Ce ngzhoukaitu iangsheng b Guangzho e Stereo Re 1MP3BL -BL, B-837 1 58-BL, B-84 89, B-8391 ant filing oqichepeijia n, the applic of this chap ngzhoukaitu e to this applic of Equipment a chain/covered quipment v01 db/forms/FTS ent 2022-2826 gov/documen hrough-the ukaituoq ertificatio oqichepeijia business bu u, China eceiver 1MP5-BL, B 415, B-8273 , B-8393, B nyouxiang o cant is not i pter, as an e oqichepeiji a cation. and Services C list SearchResul t 63 published o nts/2023/02/06 qichepei on – App anyouxiang uilding, No. B-8415A-BL 3, B-8415A, -8395, B-8 3 ongsi] (“the dentified NO entity produ anyouxiang Covered By S tPage.cfm?sw on 02/06/23 6/2022-28263/ ijianyoux plicant (C gongsi 168, Jiang x L, B-8273-B B-8371, B- 397, B-8399 applicant”) OTE 1 on the “ cing covere gongsi ection 2 of Th witch=P&id=32 /protecting-ag xiangon 2.911 (d)(5 Covered L xia North 1s BL, B-8341M -8427, B-83 9, B-8341 certify that , “Covered Li ed commun Date: J e Secure Netw 5672 ainst-national - ngsi 5)(ii) Applicant A List ) st Road, Hu MP3-BL, 380, B-8381 , as of the d st” NOTE 2 ,est ications eq Jul. 29, 2024 works Act, ava -security-threa Attestation v1.3 angshi 1, B-8383, date of the tablished uipment. 4 ailable at ats-to-the-com 3 m

guangzhoukaituoqichepeijianyouxiangongsi 2.911(d)(7)USAAgentv1.3 Section2.911(d)(7)USAAgentforServiceofProcess Companyname:guangzhoukaituoqichepeijianyouxiangongsi Address:Room602qiangshengbusinessbuilding,No.168,JiangxiaNorth1stRoad, HuangshiStreet,Baiyundistrict,Guangzhou,China ProductName:MarineStereoReceiver FCCID:2BHXL-B8371MP3BL Model(s):B-8371MP3-BL,B-8371MP5-BL,B-8415A-BL,B-8273-BL,B-8341MP3-BL, B-8427MP5-BL,B-8258-BL,B-8415,B-8273,B-8415A,B-8371,B-8427,B-8380, B-8381,B-8383,B-8385,B-8387,B-8389,B-8391,B-8393,B-8395,B-8397,B-8399, B-8341 2.911(d)(7)USADesignatedAgentforServiceofProcess We,[guangzhoukaituoqichepeijianyouxiangongsi](“theapplicant”)designate [USAMEIHUATRADINGINC] NOTE1 forthepurposeofacceptingservice ofprocessonbehalfoftheapplicant. Applicantconsent:WeAcknowledgeourconsenttoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipment,andatthephysicalU.S. addressandemailaddressofthedesignatedagentandacknowledgeouracceptance ofourobligationtomaintainanagentforserviceofprocessintheUnitedStatesforno lessthanoneyearaftereitherthegranteehaspermanentlyterminatedallmarketing andimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofany Commission-relatedadministrativeorjudicialproceedinginvolvingtheequipment, whicheverislater. Agentobligation:WeAcknowledgeourobligationtoacceptserviceofprocessinthe UnitedStatesformattersrelatedtotheapplicableequipmentatourphysicalU.S. addressandemailaddressfornolessthanoneyearaftereitherthegranteehas permanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicial proceedinginvolvingtheequipment,whicheverislater. guangzhoukaituoqichepeijianyouxiangongsi 2.911(d)(7)USAAgentv1.3 USAAgent Companyname: USAMEIHUATRADINGINC Address:5379PineValleyCtBoulderCO 80301UnitedStates FCCRegistrationNumber(FRN): 0033406166 ContactName:HarleyQuinn TelephoneNo:1-312-363-9424 Email:[email protected] Applicant Companyname: guangzhoukaituoqichepeijianyouxiangongsi Address:Room602qiangshengbusiness building,No.168,JiangxiaNorth1stRoad, HuangshiStreet,Baiyundistrict,Guangzhou, China FCCRegistrationNumber(FRN): 0035737923 FCCGranteeCode:2BHXL ContactName:KuangJiamin TelephoneNo:15920578536 Email:[email protected] Signature: Title: Signature: Title:CEO Date:Jul.29,2024Date:Jul.29,2024 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

Co m Ad d Hua Pr o Mo d BL, 83 8 Pr o We act We an d issu our Sig Na m Title Com g mpany: gua dress: Roo angshi Stre oduct Name del Numbe B-8427MP 81, B-8383, oduct Desc authorize M on our beha declare tha d certificatio ues concern behalf shal nature: me: e: mpany: uangzh angzhouka om 602 qian eet, Baiyun e: Marine S er(s): B-837 P5-BL, B-82 B-8385, B- ription: Ma MiCOM Lab alf on all ma at MiCOM L n of equipm ning the app ll have the s Kuang Ji a CEO guangzho houkaitu Agen aituoqichep ngsheng bu n district, G Stereo Rece 71MP3-BL, 258-BL, B-8 -8387, B-83 arine Stereo bs Inc., 575 atters conce Labs Inc. is ment to the r proval applic same effect amin oukaituoqic uoqiche nt Auth peijianyoux usiness bu Guangzhou eiver B-8371MP 8415, B-827 389, B-8391 o Receiver Boulder C o erning the c allowed to f regulatory a cation. Any t as acts of chepeijiany epeijiany horizat xiangongs uilding, No. u, China 5-BL, B-84 73, B-8415A 1, B-8393, B r ourt, Pleasa certification forward all i agencies as and all acts our own. youxiango youxian tion i .168, Jiang 15A-BL, B- A, B-8371, B-8395, B-8 anton, Califo of above na information s required a s carried ou Date: ngsi ngongsi gxia North 1 -8273-BL, B B-8427, B- 8397, B-839 ornia 94566 amed equip related to t nd to discu ut by MiCOM Jul. 29, 202 1st Road, B-8341MP3 -8380, B- 99, B-8341 6, USA, to pment. the approva ss any M Labs on 24 3- al

Office o Federa 7435 O Columb USA Subjec t FCC ID To Wh o Pursua are req u docume These d propriet might b In addi t in Title busine s authoriz For 4 O For 1 It is our corresp docume authoriz Sincer e Signat u Name: Title: C g of Engineeri l Communic Oakland Mills bia, MD 210 t; Request f D: 2BHXL-B8 om It May C nt to the pro uesting the ents from pu documents tary informa be harmful to Schemat Block Di Parts Lis Operatio Tune-up tional to abo 47 CFR §2 ss sensitive zed devices External Test Set Internal P User Ma 45 days, pu OR 180 days pu r understand pondence du ents and thi zation is iss ely, ure: Kuang Jia m EO uangzho ing Techno cations Com s Road 046 for Confiden 8371MP3B Concern, ovisions of t Commissio ublic disclos contain det ation in ope o our comp tic Diagram agram st onal Descrip Procedure ove mention .803 and th informatio n s, we reque Photos tup Photos Photos anual rsuant to P u ursuantto KD ding that all uring the ce s informatio sued. min oukaituo logy mmission ntiality L the Commis on to withho sure indefin tailed syste ration of th e any and wo m ption ned docume e importatio n remains c st Short Te ublic Notice DB 726920 l measurem ertification re on will be av oqichepe ssion’s rule old the follow nitely. m and equi e equipmen ould give co ents, in orde on rules in T confidential rm Confide e DA 04-170 0 D01. ment test rep eview proce vailable for eijianyou s Title 47 S wing attach pment desc nt. The publ ompetitors a er to comply Title 47 CFR until the act ntiality of th 05. ports, FCC ess cannot public revi e uxiango Sections §0. hment(s) as criptions an ic disclosu r an unfair ad y with the m R §2.1204, tual market he following ID label for be granted ew once the ongsi Date: Jul. 2 457 and §0 confidentia d are consi re of these d vantage in marketing re while ensu ting of newly attachmen mat and as confide n e grant of eq 29, 2024 0.459, we al dered as documents the market . egulations ring that y t(s); ntial quipment .

To W We, 837 B-8 4 B-83 elec 837 Ple a Sig Na m Title Whom It May guangzhouk 1MP3-BL, B- 415, B-8273, 393, B-8395, ctric circuit ar 1MP3-BL ase contact m nature: me: K e: C guangz Mo y Concern, kaituoqichep -8371MP5-B , B-8415A, B , B-8397, B-8 re the same, me if you hav Kuang Jiam CEO zhoukait odel Di peijianyouxia BL, B-8415A- B-8371, B-84 8399, B-834 only with a p ve any quest min uoqiche fferenc ngongsi (Ma -BL, B-8273- 427, B-8380, 1; Model Dif f product mod tion. peijianyo ce Dec arine Stereo R -BL, B-8341M B-8381, B-8 ference: All m el named dif ouxiango claratio Receiver); M MP3-BL, B-8 8383, B-8385 model’s the f fferent. Test Date: ongsi on Model Numbe 8427MP5-BL 5, B-8387, B- function, soft sample mod Jul. 29, 20 er: B- , B-8258-BL -8389, B-839 tware and del: B- 024 , 91,

FCC ID LABEL: Ca. 20mm x 30mm Label Location FCC ID: 2BHXL-B8371MP3BL

MPE ESTIMATION FCC ID: 2BHXL-B8371MP3BL 1, Limit for General Population/ Uncontrolled Exposures Frequency Power density (mW/ cm 2 ) Averaging time(minutes) 300MHz----1.5GHz F/1500 30 1.5GHz---100GHz 1.0 30 2, Estimation Result Max PK Output power(dBm) Tune Up Power(dBm) Max Tune Up power(mW) Antenna Gain(dBi) Antenna Gain (linear) MPE (mW/cm²) EDR 3.07 3±1(4) 2.51 -0.58 0.87 0.00043 Note: Note: The estimation distance is 20cm Note: PK Output power= conducted power. Conducted power see the test report HK2407113788-E When the minimum test separation distance is >20 cm, a distance of 20 cm is applied to determine RF Exposure test exclusion. The test exclusion threshold is 0.00043 which is< 1.0, RF Exposure testing is not required. -------The End-------

Inverted F Antenna Specification Summary ITEMANT SPEC Model Name 2.4G ANT HorizontalVertical 2400MHz 2440MHz 2500MHz2400MHz 2440MHz 2500MHz Center Frequency -1.26 -0.76 -0.58 -5.25 -2.46 -1.86 MAX. Gain -0.58dBi PolarizationHorizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance50 Ohm Antenna Photo & Length (mm) 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.

Page 1 of 46 Report No.: HK2407113788-E FCC Test Report Test report On Behalf of guangzhoukaituoqichepeijianyouxiangongsi For Marine Stereo Receiver Model No.: B-8371MP3-BL, Please refer to page 7 for Serial models FCC ID: 2BHXL-B8371MP3BL Prepared For : guangzhoukaituoqichepeijianyouxiangongsi Room 602 qiangsheng business building, No.168, Jiangxia North 1st Road, Huangshi Street, Baiyun district, Guangzhou, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Jul. 11, 2024 ~ Jul. 24, 2024 Date of Report: Jul. 24, 2024 Report Number: HK2407113788-E Page 2 of 46 Report No.: HK2407113788-E Test Result Certification Applicant’s name ......... guangzhoukaituoqichepeijianyouxiangongsi Address .......................... Room 602 qiangsheng business building, No.168, Jiangxia North 1st Road, Huangshi Street, Baiyun district, Guangzhou, China Manufacturer's Name ... guangzhoukaituoqichepeijianyouxiangongsi Address .......................... Room 602 qiangsheng business building, No.168, Jiangxia North 1st Road, Huangshi Street, Baiyun district, Guangzhou, China Product description Trade Mark: Geloo Product name .................. Marine Stereo Receiver Model and/or type reference ...................... B-8371MP3-BL, Please refer to page 7 for Serial models Standards ...................... 47 CFR FCC Part 15 Subpart C 15.247 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ................................. . Date (s) of performance of tests ... . Jul. 11, 2024 ~ Jul. 24, 2024 Date of Issue ................................. Jul. 24, 2024 Test Result ..................................... Pass Testing Engineer : (Len Liao) Technical Manager : (Sliver Wan) Authorized Signatory : (Jason Zhou) Page 3 of 46 Report No.: HK2407113788-E Table of Contents Page 1. Summary ........................................................................................................................................................ 5 1.1. Test Standards ......................................................................................................................................... 5 1.2. Test Description ....................................................................................................................................... 5 1.3. Information of the Test Laboratory ........................................................................................................... 6 1.4. Statement of the Measurement Uncertainty ............................................................................................ 6 2. General Information ....................................................................................................................................... 7 2.1. Environmental Conditions ........................................................................................................................ 7 2.2. General Description of EUT ..................................................................................................................... 7 2.3. Description of Test Modes and Test Frequency ....................................................................................... 8 2.4. Equipments Used During the Test ........................................................................................................... 9 2.5. Related Submittal(S) / Grant (S) ............................................................................................................ 10 2.6. Modifications .......................................................................................................................................... 10 2.7. Description of Test Setup ....................................................................................................................... 10 2.8. Description of Support Units .................................................................................................................. 11 3. Test Conditions and Results ...................................................................................................................... 12 3.1. Conducted Emissions Test .................................................................................................................... 12 3.2. Radiated Emissions and Band Edge ..................................................................................................... 14 3.3. Maximum Peak Conducted Output Power ............................................................................................ 25 3.4. 20db Bandwidth ..................................................................................................................................... 26 3.5. Frequency Separation ........................................................................................................................... 29 3.6. Number of Hopping Frequency ............................................................................................................. 31 3.7. Time of Occupancy (Dwell Time) ........................................................................................................... 33 3.8. Out-of-Band Emissions .......................................................................................................................... 36 3.9. Pseudorandom Frequency Hopping Sequence .................................................................................... 43 3.10. Antenna Requirement ............................................…

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Test Model：B-8371MP3-BL Radiated Emission