2AMG5-STG-6870-KBWIRELESS EARBUDS

                                   
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“    Ž ƒ”        ”  “  •    Ž     Œ       “    €‚ƒ ”„ˆ …    ”„  ‘      ­       † ‡  €­ ­   ­ˆ ­ˆ    ‹„‹  ‹ „    ”„‹   ‹ „•   Ž      Model No.: STG-6870-KB FCC STATEMENT : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. Warning: 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 residential 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 television 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: ceiving antenna. receiver is connected. RF warning statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

JLR Gear 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. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4/10/2023 U.S. Agent Designation [JLR Gear] 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: [2AMG5-STG-6870-KB): Name and company of U.S. agent: JLR Gear Physical U.S. address of agent: 2612 Barrington Court Hayward, CA 94545 FRN of U.S. agent: 0026573915 Email address of U.S. agent: [email protected] [JLR Gear] acknowledges their obligation to accept service of process on behalf of [JLR Gear]. [JLR Gear] 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). Sincerely, Signature [Name] Eric Marshburn [Title] Manager [Company] JLR Gear Signature [Name of U.S. agent] Eric Marshburn [Title of U.S. agent] Manager [Company of U.S. agent] JLR Gear 48_[mo del] US_Agent_2.911(d)(7) - U, V03

JLR Gear 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. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 4/10/2023 To whom it may concern: We, [JLR Gear], hereby certify that the equipment for which authorization is sought (FCC ID: [2AMG5-STG-6870-KB]) is not “covered” equipment prohibited from receiving an equipment authorization pursuant to § 2.903 of the FCC rules. We also certify that, as of the date of the filing of the application, we are not identified on the Covered List (https://www.fcc.gov/supplychain/coveredlist ) as an entity producing “covered” equipment. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(b) and (d)(5) and (6). Sincerely, Signature [Name] Eric Marshburn [Title] Manager [Company] JLR Gear 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V02

FCC ID: 2AMG5-STG-6870-KB

Label Location On EUT Label FCC ID: 2AMG5-STG-6870-KB

FCC ID: 2AMG5-STG-6870-KB ANT

2.4GHz3216ChipAntenna:RANT3216F245C02 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT3216F245C02 (A)(B)(C)(D)(E)(F) ElectricalSpecification ThespecificationisdefinedonEVB. DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 3.2x1.6mm( ± 0.2mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=02 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGaindBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature(°C)-40~85°C ResistancetoSolderingHeats 10sec.(@280°C) TerminationNi/Au(Leadless) Dimension(mm) L 3.20±0.20 W 1.60±0.20 T 0.45±0.20 咏成國際科技有限公司電話 :13530576606 RAINInternationalTechnologyCo.,Ltd. TEL:13530576606 1.24 2.4GHz3216ChipAntenna:RANT3216F245C02 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ReturnLoss Frequency(MHz) S11(dB) 2400-10.50 2450-30.62 2500-11.47 Radiation 2400MHz2450MHz2500MHz Efficiency82.52%85.26%83.01% PeakGain1.15dBi1.24dBi1.19dBi Directivity1.89dBi1.97dBi1.91dBi X Y Z 2400MHz 2450MHz 2500MHz 2.4GHz3216ChipAntenna:RANT3216F245C02 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 32167”5K/Reel 9.0±0.5 60±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType3216 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 2.4GHz3216ChipAntenna:RANT3216F245C02 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 2.4GHz3216ChipAntenna:RANT3216F245C02 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/10/01NewDatasheet

JLR Gear Declaration concerning Antenna Specification It is hereby declared that the product Model No.: STG-6870-KB FCC ID: 2AMG5-STG-6870-KB fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for Ceramics antenna type(s) described below: Model No. of antenna: RANT3216F245C02 Type of antenna: Ceramics Antenna Gain of the antenna: 1.24 dBi Frequency range: 2400-2500 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: JLR Gear Address: 2434 Research Dr City: Livermore ZIP / Postal code: Country: United States Place: United States Date: 2023-03-30 Signature: version01

RF EXPOSURE EVALUATION FCC ID: 2AMG5-STG-6870-KB According to FCC 1.1310: 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): Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to qualify for TCB approval. Channel (MHz) Maximum output power (dBm) Tune up tolerance (dBm) Max Tune Up Power (dBm) Distance (mm) Calculation results Limit Operating Mode 2402 -11.37 -11.37±1 -10.37 5 0.028 3 BDR&EDR 2441 -14.30 -14.30±1 -13.30 5 0.015 3 2480 -14.50 -14.50±1 -13.50 5 0.014 3 2402 -10.52 -10.52±1 -9.52 5 0.035 3 2441 -13.33 -13.33±1 -12.33 5 0.018 3 2480 -13.59 -13.59±1 -12.59 5 0.017 3 Test Results: PASS.

Project No.: ZKT-230316L1765E Page 1 of 63 FCC TEST REPORT FCC ID: 2AMG5-STG-6870-KB Report Number. ................................ : ZKT-230316L1765E Date of Test ......................................... Mar. 17, 2023 to Mar. 24, 2023 Date of issue ..................................... : Mar. 27, 2023 Total number of pages ....................... 63 Test Result ...................................... : PA SS 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 ......................... : JLR Gear Address ........................................... : 2434 Research Dr Livermore, CA 94550USA Manufacturer's name ................... : JLR Gear Address ........................................... : 2434 Research Dr Livermore, CA 94550USA 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. .................... : TRF-EL-112_V0 Test Report Form(s) Originator .... : Z K T Te s t i n g Master TRF ................................... : Dated: 2021-04-22 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 ................................. : WIRELESS EARBUDS Trademark ....................................... : N/A Model/Type reference ....................... : STG-6870-KB Ratings.............................................. : Input: DC 5V, 1A Battery: Charging box: DC 3.7V, 300mAh Earphone: DC 3.7V, 30mAh Project No.: ZKT-230316L1765E Page 2 of 63 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 Tom Zou Te s ted by (name + signature) .................... : Jackson Fang Reviewer (name + signature) ..................... : Lake Xie Approved (name + signature) .................... : Project No.: ZKT-230316L1765E Page 3 of 63 Table of Contents Page 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 ......................................................................................... 9 3.3 Support Equipment ................................................................................................ 10 3.4 Test Mode ............................................................................................................. 11 3.5 EQUIPMENTS LIST FOR ALL TEST ITEMS ........................................................ 12 4. EMC EMISSION TEST ............................................................................................ 14 4.1 Conducted emissions ............................................................................................ 14 4.1.1 POWER LINE CONDUCTED EMISSION Limits ................................................ 14 4.1.2 TEST PROCEDURE .......................................................................................... 14 4.1.3 DEVIATION FROM TEST STANDARD .............................................................. 14 4.1.4 TEST SETUP ..................................................................................................... 14 4.1.5 EUT OPERATING CONDITIONS ....................................................................... 15 4.2 Radiated emissions ............................................................................................... 18 4.2.1 Radiated Emission Limits ................................................................................... 18 4.2.2 TEST PROCEDURE .......................................................................................... 18 4.2.3 DEVIATION FROM TEST STANDARD .............................................................. 19 4.2.4 TEST SETUP ..................................................................................................... 19 4.2.5 EUT OPERATING CONDITIONS ....................................................................... 20 4.2.6 TEST RESULTS ................................................................................................. 20 5. RADIATED BAND EMISSION MEASUREMENT ................................................... 26 5.1 Test Requirement: ................................................................................................. 26 5.2 TEST PROCEDURE ............................................................................................. 26 5.3 DEVIATION FROM TEST STANDARD ................................................................. 27 5.4 TEST SETUP ..............................................................…

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APPENDIX I -- TEST SETUP PHOTOGRAPH Photo of Conducted Emission Test Photo of Radiation Emission Test