2BHG4-LX-30Bluetooth headset

Shenzhen Lanxin Technology Co. LTD. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 9/3/2024 U.S. Agent Designation Shenzhen Lanxin Technology Co. LTD. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BHG4-LX-30): Name and company of U.S. agent: SELLER HELPER INC Physical U.S. address of agent: 1312 17th Street#1298, Denver, CO 80202, Jnited States FRN of U.S. agent: 0033884602 Email address of U.S. agent: [email protected] SELLER HELPER INC acknowledges their obligation to accept service of process on behalf of Shenzhen Lanxin Technology Co. LTD. Shenzhen Lanxin Technology Co. LTD.with the FRN：0035661883. accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature [Name] Jinshu lin [Title] Manager [Company] Shenzhen Lanxin Technology Co. LTD [Name of U.S. agent] Fairy Lee [Title of U.S. agent] Manager [Company of U.S. agent] SELLER HELPER INC 48_[mo del] US_Agent_2.911(d)(7) - U, V05

Bluetooth headset FCC ID: 2BHG4-LX-30 LX-30 External photographs

Label And Label Location FCC ID: 2BHG4-LX-30

Bluetooth headset FCC ID: 2BHG4-LX-30 LX-30 Internal photographs

RF Exposure Requirements 1.1 Product Description for Equipment Under Test (EUT) Client Information Applicant: Shenzhen Lanxin Technology Co. LTD. Address of applicant: Zone B,7th Floor,Building B1,Huafeng Century Science And Technology Park,Hangcheng Avenue Xixiang street,Baoan District,Shenzhen China Manufacturer: Shenzhen Lanxin Technology Co. LTD. Address of manufacturer: Zone B,7th Floor,Building B1,Huafeng Century Science And Technology Park,Hangcheng Avenue Xixiang street,Baoan District,Shenzhen China General Description of EUT Product Name: Bluetooth headset Brand Name: / Model No.: LX-30 Adding Model(s): / Rated Voltage: DC 5V or DC3.7V Battery Power Adapter: / Software Version: / Hardware Version: / Serial Number: 76453HY7531 FCC ID: 2BHG4-LX-30 Technical Characteristics of EUT Bluetooth Version: V5.4(BDR/EDR mode) Frequency Range: 2402-2480MHz RF Output Power: 4.88dBm (Conducted) Data Rate: 1Mbps, 2Mbps Modulation: GFSK, Pi/4 QDPSK, 8DPSK Quantity of Channels: 79 Channel Separation: 1MHz Type of Antenna: Chip Antenna Gain: 2.48dBi 1.2 Standard Applicable According to §1.1307(b)(1) and KDB 447498 D01 General RF Exposure Guidance v06, the following RF exposure evaluation shall to demonstrate RF exposure compliance. [(max. power of channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 Where -f(GHz) is the RF channel transmit frequency in GHz -Power and distance are rounded to the nearest mW and mm before calculation -The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm, and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 4.1 f) is applied to determine SAR test exclusion. 1.3 Calculation Method Bluetooth Tx frequency range: 2402~2480MHz Min. test separation distance: 5mm Maximum Conducted Output Power: 4.88dBm RF channel transmit frequency: 2402MHz Result: 0.18 Limit: 3.0 So the transmitter complies with the RF exposure requirements and the SAR is not required.

PAGE1 OF5 深圳市朋伴兴业科技有限公司 产品规格承认书 SPECIFICATIONS N:蓝牙天线 ARTNo: 客户确认签章(APPROVEDSIGNATURE) 客户: CUSTOMER: 产品名称: DESCRIPTIO 客户型号: CUSTOMERP 产品型号: OURMODELNO:PBX2012MA02 日期: DATE:2020/12/22 确认签字,盖章后请返回承认书一份 PLEASERETURNTOUSONECOPYOF“SPECIFICATIONFOR APPROVAL”WITHYOURAPPROVEDSIGNATURES 核准 王海 审核刘飞制作刘小美 PAGE 2 OF5 深圳市朋伴兴业科技有限公司 PBX2012MA02Specification OperatingTemp.:-40°C~+85°C 1. FEATURES : ●Lightweight,compact ●Widebandwidth,lowcost ●Built-inantennawithhighgain 2. APPLICATIONS : ●Bluetooth,WirelessLAN,MobileTV ●HomeRFSystem,etc 3.PRODUCTIDENTIFICATION CHIP201 221 (1)(2)(3) (1)Producttype:MultilayerchipAntenna (2)ExternalDimensions(L×W)(mm):2.0*1.2 4.SHAPEANDDIMENSIONS: SHAPEANDDIMENSIONS LWHA 2.0±0.21.2±0.20.55±0.10.4±0.1 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝±HOLEDIA＝± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-21Specification DOCUMENT NO. 2012 SPECREV. P1 PAGE 3 OF5 深圳市朋伴兴业科技有限公司 TERMINAL-CONFIGURATION EVALUATIONBOARD APPLICATIONGUIDE UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-21Specification DOCUMENT NO. 2012 SPECREV. P1 PAGE 4 OF5 深圳市朋伴兴业科技有限公司 5.SPECIFICATIONS: ITEMSPECIFICATION FrequencyBand2400MHz～2483MHz VSWRLessthan3 PolarizationLinear *PeakGain2.48dBiTyp. *PeakEfficiency72.6%Typ. Impedance50ΩTyp. *Testcondition:Testboardsize98*65mm Matchingcircuit:Pimatchingcircuitwillberequired 6.ElectricalCharacteristics: VSWR MarkFrequencyVSWR 12400MHz3.04 22450MHz1.15 32500MHz2.57 UNLESSOTHERSPECIFIEDTOLERANCESON： X＝ ± X.X＝ ± X.XX＝ ANGLES＝±HOLEDIA＝± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-21Specification DOCUMENT NO. 2012 SPECREV. P1 MarkFrequencyVSWR 1 2400MHz3.04 2 2450MHz1.15 3 2500MHz2.57 PAGE 5 OF5 深圳市朋伴兴业科技有限公司 RadiationPattern TheGainpatternismeasuredinINPAQ’sFAR-fieldchamber.DUTisplacedonthetableof rotator,astandardhornantennaandVectorNetworkAnalyzerisusedtocollectdata. ◎ 3DGainPattern(2400MHz) ◎2DGainPattern(2400MHz) UNLESSOTHERSPECIFIEDTOLERANCESON： X＝±X.X＝±X.XX＝ ANGLES＝ ± HOLEDIA＝ ± 深圳市朋伴兴业科技有限公司 SCALE：N/AUNIT：mm THISDRAWINGSANDSPECIFICATIONSARETHEPROPERTYOFPBXY TECHNOLOGYLimitedANDSHALLNOTBEREPRODUCEDORUSEDAS THEBASISFORTHEMANUFACTUREORSALEOFAPPARATUSOR DEVICESWITHOUTPERMISSION DRAWNBY:SeraCHECKEDBY:XD DESIGNEDBY:SeraAPPROVEDBY:XD TITLE：CHIP2450-21Specification DOCUMENT NO. 2012 SPECREV. P1

Bluetooth headset FCC ID: 2BHG4- LX-30 LX-30 Test setupt photos Radiated emission 30MHz~1GHz Conducted emission Radiated emission Above 1GHz