2A7DX-AIRBUDS8Wireless Earphone

AirBuds 8 USER GUIDE PRODUCT INTRODUCTION DEVICE CONNECTION Method 1: 1. When using the product for the rst time, open the charging case cover. When the earbuds LED indicator are blinking in orange and white alternately, the earbuds enter the "Pairing state". 2. Turn the Bluetooth on, and select "AirBuds 8". 1 English Touch control LED digital display Earbuds LED indicator Microphone USB-C charging port AirBuds 8 CONTROL i) Equipment operation There is a connection prompt tone after successful connection. Method 2: 1. When the earbuds are already connected to the device, Click the “Touch” button four times. The indicator will blink in orange and white alternately, and the earbuds will enter the pairing state (Cannot operate while making calls or playing music ) . 2. Turn the Bluetooth on, and select "AirBuds 8". There is a connection prompt tone after successful connection. Note: The above is the connection method when the product is pairing a new device for the f irst time. After the initial use of the product, the earbuds will automatically switch on and connect to the device when you take it out from the charging case. 2 1. Power on: Open the charging case, and the headphones will automatically power on. 2. Shut down: Put the headphones into the charging case and close the charging case to shut down . 3. Restore factory settings: (In pairing mode)Double touch + long press 5S; when the white light ashes for 3 times, the headphones will enter the factory reset mode, put the headphones into the charging case, the headphones status will be restored to the factory settings .You can open the cover to re-pair. iii) Call Mode ii) Playback Mode SWITCH TO DIFFERENT CALLS INCOMING CALLONGOING CALL L / RL / R L / R 4) Answer call 2. Call 1 is hold-on L / R 6) Reject call 2. Hold call 1 L / R 5) Switch between call 1 and call 2 L / R x 2x 2 2 s 2 s 21 2 s 21 x 2 21 R 2 s L 2 s 4) Siri4)Google Voice Assistant L / R x 2 R L x 1/x 3x 1/x 3 1)Play / Pause2)Volume Down/ Previous 3)Volume Up/ Next 1)Answer a call2) Reject an incoming call 3) End a call 3 5) Transparency mode / ANC on / ANC o ( 2s toggle ) Light indication 4 Pairing status Blinking Orange/ White Light Power on /Power off Orange Light Quick Double Blink for 5S Headphone low power status White Light On for 2S/ Orange Light On for 2S White Light Quick Double Blink for 2S Incoming call Charging box low battery (＜ 20%) Digital display flashes and extinguishes after 10S Display headphone battery level.(Open, Close) display will light up Display charging case battery level (Open, Close) The LED digital display shows numbers TECHNICAL SPECIFICATIONS Earbuds driver • 13 mm neodymium magnet sound Units x 2 Frequency Response • 20–20,000 Hz Microphone • Omnidirectional MEMS x1 (per earbud) Bluetooth Version • Bluetooth 5.3 Bluetooth pro f i le • A2DP • AVRCP • HFP Audio Codec • SBC • AAC Wireless operating frequency • 2402-2480 MHz Wireless transmission range • Up to 10 meters (measured in open area). Walls and wall structures may aect the transmission range of the device. Playback time • Up to 6 hours on a single full charge • Total playback time: 27 hours^ Battery • Earbuds: Rechargeable lithium-ion Polymer Battery 3.7 V 35 mAh 0.129 Wh • Charging case: Rechargeable lithium-ion Polymer 3.7 V 400 mAh 1.48 Wh Charging time • < 2 hours IP Rating • IPX7 waterproof Operating temperature • 0-45°C Maximum output power • 5 dBm Input rated power • 5V 1A ^Based on moderate volume. Actual battery life will vary, depending on specif ic use, settings, and environmental factors NOTE: Compliance markings are in the charging case. CAUTION: Do not use the earbud at a high volume for extended periods of time as this may cause hearing loss. 5 Answers for Common Questions (1) The bluetooth headset cannot be switched on. Reason: The battery in the charging compartment is low or the power of the bluetooth headset is low. Solution: Put the headset into the charging box, close the cover, and charge the charging box for more than 1 hour before use. (2) The phone cannot search for bluetooth headset. Reason: 1. The Bluetooth headset is not in the pairing state; Solution: 1. When the earbuds are already connected to the device, Click the “Touch” button four times. The indicator will blink in orange and white alternately, and the earbuds will enter the pairing state. Reason: 2. There are mobile phone bluetooth program errors; Solution: After the bluetooth of the mobile phone is restarted, clear all pairing data stored in the the mobile phone; Search for bluetooth again. (3) There is no sound from the headset speaker Reason: 1. Turn the volume of the mobile phone and headset to the maximum and conf irm whether it is caused by volume adjustment. Solution: When the headset is connected, adjust the volume of the mobile phone; Reason: 2. The Bluetooth headset is not properly connected with the mobile phone. Solution: Reconnect bluetooth and mobile phone through pairing. 6 Reason: 3. The Bluetooth headset is not within the valid working range. Solution: Keep the headset within 10 meters of the mobile phone, and there are no large objects, walls and other obstacles between the headset and the device. (4) The headset doesn't send messages or the voice is low. Reason: 1. The Bluetooth headset is too far from the mouth; Solution: The bluetooth headset should be worn on the ear for normal use; Reason: 2. The microphone hole of Bluetooth is blocked or water has entered; Solution: Remove the blockage of the microphone hole or prevent water from entering the microphone hole. (5) The headphone get stuck or disconnected when talking or listening to music. Reason: 1. The Bluetooth headset is too far away from the mobile phone or there are obstacles. Solution: 1. Keep the headset within 10 meters of the mobile phone, and there are no large objects and walls between the headset and the device. Be careful not to cover the bluetooth headset with your hand. In order to maintain the continuous…

Text truncated - open the document above for the full version.

DOKE COMMUNICATION (HK) LIMITED RM 1902 EASEY COMM BLDG 253-261 HENNESSY ROAD WANCHAI HK Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-10-28 To whom it may concern: We, DOKE COMMUNICATION (HK) LIMITED, hereby certify that the equipment for which authorization is sought (FCC ID: 2A7DX-AIRBUDS8) 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). 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. Sincerely, Signature Lynne Chen manager DOKE COMMUNICATION (HK) LIMITED 62_[model] CoveredEqu_2.911(d)(5)(i) and (ii) - U, V03

DOKECOMMUNICATION(HK) LIMITED FederalCommunicationsCommission Authorizationand EvaluationDivision EquipmentAuthorizationBranch 7435 OaklandMills Road Columbia,MD 21046 10/30/23 U.S. AgentDesignation DOKECOMMUNICATION(HK) LIMITEDacknowledgestheir consentfor the followingcontactlocatedin the UnitedStatesto act as their agent for serviceof processfor the equipmentfor which authorizationis sought(FCC ID:2A7DX-AIRBUDS8): Nameand companyof U.S. agent: Tim Payne,FCC US Agent,LLC PhysicalU.S. addressof agent:3722 IllinoisAvenue,Saint Charles,IL, 60174,USA FRN of U.S. agent: 0033402884 Email addressof U.S. agent: [email protected] FCC US Agent,LLCacknowledgestheir obligationto acceptserviceof processon behalfofDOKE COMMUNICATION(HK) LIMITED. DOKECOMMUNICATION(HK) LIMITEDwith theFRN 0032533945acceptsits obligationto maintainan agentfor serviceof processin the UnitedStatesfor no less than one year after eitherthe granteehas permanentlyterminatedall marketingand importationof the applicableequipmentwithinthe U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. By signingthis form, we confirmthe aboveand that we are awareof the applicationrequirementslisted under§ 2.911(d)(7). The informationprovidedin this letter is basedon the referencedrule parts of Title 47 of the CFR as well as KDB 986446D01. An expirationdate for this letter does not exist. In case the U.S. agent changes,the granteeis obligatedto notify the FCC within 30 days via the grantingTCB. Sincerely, Signature LynneChen Manager DOKECOMMUNICATION(HK) LIMITED Signature Tim Payne Manager FCC US Agent,LLC 48_[model] US_Agent_2.911(d)(7)-U, V05

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2023-10-28> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2A7DX-AIRBUDS8 AirBuds 8 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： Lynne Chen/manager Company: DOKE COMMUNICATION (HK) LIMITED Address: RM 1902 EASEY COMM BLDG 253-261 HENNESSY ROAD WANCHAI HK Phone: 18825230528 Fax: 0755-6668278 E-Mail: [email protected]

DOKE COMMUNICATION (HK) LIMITED RM 1902 EASEY COMM BLDG 253-261 HENNESSY ROAD WANCHAI HK Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2023-10-28 To whom it may concern: We, the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2A7DX-AIRBUDS8 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. By signing this application form, we agree to Eurofins’ current valid General Terms and Conditions (AGB),Testing and Certification Regulations (PZO) which can be viewed on following website www.eurofins.de/ee or retrieved on request. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： Lynne Chen/manager Company: DOKE COMMUNICATION (HK) LIMITED Address: RM 1902 EASEY COMM BLDG 253-261 HENNESSY ROAD WANCHAI HK Phone: 18825230528 Fax: 0755-6668278 E-Mail: [email protected]

Page1of4FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of4FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of4FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of4FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 ------End------

Label FCCID:2A7DX-AIRBUDS8

Page1of5FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of5FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of5FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of5FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5of5FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 ------End------ Antenna

RFExposureevaluation FCCID:2A7DX-AIRBUDS8 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)] · [√f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance BR-EDR Frequency (MHz) GFSK 240224412480 Target(dBm)1.01.01.0 Tolerance ± (dB) 1.01.01.0 Frequency (MHz) π/4DQPSK 240224412480 Target(dBm)2.02.02.0 Tolerance±(dB)1.01.01.0 Page2of2 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BR-EDR2.553.02.00.63<3Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of38ReportNo.:AIT23101309FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:DOKECOMMUNICATION(HK)LIMITED Applicantadd.: RM1902EASEYCOMMBLDG253-261HENNESSYROADWANCHAIHK CHINA Manufacturer:ShenzhenDOKEElectronicCo.,Ltd Manufactureradd.: 801,Building3,7thIndustrialZone,YulvCommunity,YutangRoad, GuangmingDistrict,Shenzhen,China ProductInformation: ProductName:WirelessEarphone ModelNo.:AirBuds8 BrandName:Blackview FCCID:2A7DX-AIRBUDS8 Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Oct.13,2023DateofTest:Oct.13~Oct.17,2023 DateofIssue:Oct.18,2023TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: SimbaHuangSeal.chen Page2of38ReportNo.:AIT23101309FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS......................................................................................................................................................................2 2TESTSUMMARY............................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty................................................................................4 2.2MeasurementUncertainty............................................................................................................4 3TESTFACILITY..............................................................................................................................................................5 3.1Deviationfromstandard...............................................................................................................5 3.2Abnormalitiesfromstandardconditions.......................................................................................5 3.3TestLocation.................................................................................................................................5 4GENERALINFORMATION...........................................................................................................................................6 4.1Testfrequencies............................................................................................................................7 4.2EUTPeripheralList.......................................................................................................................8 4.3TestPeripheralList.......................................................................................................................8 4.4TESTMETHODOLOGY...............................................................................................................9 4.5DescriptionofTestModes..........................................................................................................10 5EQUIPMENTUSEDDURINGTEST.........................................................................................................................11 6TESTRESULTSANDMEASUREMENTDATA.....................................................................................................11 6.1Antennarequirement..................................................................................................................12 6.2PeakPowerMeasurement.........................................................................................................13 6.3FrequencySeparationand20dBBandwidth............................................................................15 6.4NumberofHoppingFrequency..................................................................................................17 6.5TimeofOccupancy(DwellTime)...............................................................................................18 6.6ConductedSpuriousEmissionsandBandEdgesTest.............................................................20 6.7Restrict-bandBand-edgeMeasurements..................................................................................22 6.8RadiatedEmissionsMeasurement............................................................................................24 6.9ConductedEmissions.................................................................................................................34 6.10Pseudorandomfrequencyhoppingsequence...........................................................................37 7TESTSETUPPHOTOGRAPHSOFEUT.................................................................................................................38 8EXTERNALPHOTOGRAPHSOFEUT....................................................................................................................38 9INTERNALPHOTOGRAPHSOFEUT.....................................................................................................................38 Page3of38ReportNo.:AIT23101309FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. RevisionHistory RevisionIssueDateRevisionsRevisedBy 000 Oct.18,2023 InitialIssueSealChen Page4of38ReportNo.:AIT23101309FW1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 2TestSummary TestItemSe…

Text truncated - open the document above for the full version.

SMD
CERAMIC
ANTENNA
Data
Sheet CS -2450-16-C For 2400-2483MH z 1.6x0.8mm [EIA1608] 典型特征 T y p i cal Characterist i cs ■ 重量轻，结构紧凑 Light weight, compact ■ 宽带大，低成本 Wide bandwidth, low cost ■ 高增益内置天线 Built-in antenna with high gain ■ 工作温度 Operating Temp. : -40°C~+85°C 电气特性 Electrical Characteristics per line(TA=25°C) 2400~2483 MHz Lin ear 2. 36 dB i 66. 5% % 50 频带 Frequency Band 极 化 P o l a riz a t i o n * 峰 值 增 益 P eak Ga in * 峰 值 效 率 P ea k Effi c i e n c y 阻 抗 Im p e n da n ce 参数Parameter 规格Specification 单位Units 特征 Feature 应用 Application ■ 蓝牙,无线局域网,移动电视 Bluetooth, Wireless LAN, Mobile TV ■ 家用射频系统Home RF system, etc TECHNOLOGY *测 试 条 件 ： 测 试 板 尺 寸 9 8 × 65 mm ； 匹 配 电 路 ： π 型 匹 配 电 路 。 T est co n d i t i o n : T est boa r d s iz e 9 8 * 65 m m ; M a t c hin g c ir cu i t: P i m a t c hin g c ir cu i t w il l be re q u ir ed Fi g .1 驻 波 比 V S WR W C S -2450-16-C Chip Antenna 3D模式 3D Gain Pattern (2400 MHz) 增益模式是在 暗 室 进 行 测 试 的 ， 被 测 件 放 在 桌 肩 位 置 ， 用 标 准 的 喇 叭 天 线 和 矢 量 网 络 分 析 仪 来 收 集 数 据 。 Th e Ga i n p a tt e rn i s measu r ed i n FAR - fi e l d c h a m be r . D U T i s p l aced o n e tab l e o f r o t a t o r , a s t a n da r d ho r n a n t e nn a a n d Vec t o r N e t w o rk t o co ll ect da t a . 辐射模式 Radiation Pattern Fig.2 暗室示意图 FAR-field Chamber TECHNOLOGY Chip Antenna t h An a l y z e r i s uesd 3D模式 3D Gain Pattern (2450 MHz) 3D模式 3D Gain Pattern (2500 MHz) TECHNOLOGY Chip Antenna 1. 30±3 minutes at -40°C±5°C, 2. Convert to +105°C (5 minutes) 3. 30±3 minutes at +105°C±5°C, 4. Convert to -40°C (5 minutes) 5. Total 100 continuous cycles 项目Item 环境Condition 规格Specification 热冲击 Thermal shock No apparent damage Fulfill the electrical spec. after test. 抗湿性 Humidity resistance No apparent damage Fulfill the electrical spec. after test. 1. Humidity: 85% R.H. 2. Temperature: 85±5°C 3. Time: 1000 hours. The dipped surface of the terminal shall be at least 95% covered with solder after dipped in solder bath of 245±5°C for 3±1 seconds. No apparent damage 焊锡性 Solderability 耐焊接热性 Soldering heat resistance No apparent damage 1. Solder bath temperature : 260±5°C 2. Bathing time: 10±1 seconds 低温电阻 Low temperature resistance No apparent damage Fulfill the electrical spec. after test. 1. Temperature: -40°C±5°C 2. Time: 1000 hours. No apparent damage Fulfill the electrical spec. after test. 1. Temperature: 150°C±5°C 2. Time: 1000 hours. 耐高温性 High temperature resistance 推荐回流焊接曲线Recommended Reflow Solder curve (2) 储存环境 Storage Condition (a)仓库：温度应在0～30°C之间，湿度应小于60%湿度，产品应在交货之日起1年内使用。 At warehouse: The temperature should be within 0 ~ 30°C and humidity should be less than 60% RH.The product should be used within 1 year from the time of elivery. (b)在板：温度应在40～85°C之间，湿度应小于85%湿度。On board: The temperature should be within -40~85°C and humidity should be less than 85% RH. (3) 工作环境温度 Operating Temperature Range 工作温度范围：-40°C to +85°C。 Operating temperature range : -40°C to +85°C. TECHNOLOGY Chip Antenna 推荐焊&Evaluation Board (1) 电烙铁的使用 Soldering Gun Procedure 以下注意事项仅针对使用电烙铁进行个别器件更换。 Note the follows, in case of using solder gun for replacement. (a) 使用小于30W的电烙铁，温度不高于350°C，焊接时间小于3秒。 The tip temperature must be less than 350°C for the period within 3 seconds by using soldering gun under 30 W. (b) 烙铁不可直接接触器件本体。 The soldering gun tip shall not touch this product directly. (2) 焊锡量 Soldering Volume 注意焊接过程中过多的焊锡量会损害器件本体。 Note that excess of soldering volume will easily get crack the body of this product. 产品尺寸 Product Dimension TECHNOLOGY Chip Antenna 应用环境Application Guide 包装信息Package Information A B C D E F L W 8.00±0.3 3.50± 0.051.75±0.1 2.00±0.054.00±0.1 1.50±0.1 2.30± 0.1 1.55± 0.1 编码规则 Par t Number System CS - 2450 - 16-C External DimensionsL*W(mm)1.6*0.8 Central Frequency2450MHz Product Series: Chip Antenna 丝印 Marking TECHNOLOGY Chip Antenna TECHNOLOGY 订货信息Order Information 设备 Device Package 净重 Net Weight 运送式 Carrier 量 Quantity 认证 HSF Status CS-2450 -16-C 1608 Tape & Reel 5000pcs RoHS compliant 版本信息 Revision history 日期/Date 本/Revision 2022-12-2 V1.0 本描述/Description of changes First Version 0.002g The contents of this data sheet are subject to change without notice. Please confirm the specifications and delivery conditions when placing your order. © Copyright 2015, Keweixin Electronics All rights reserved Chip Antenna

Page1of2FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TestSetupPhoto RadiatedEmission Page2of2FCCID:2A7DX-AIRBUDS8 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. ConductedEmission ------End------