2A889-X8True Wireless Earbuds

User Manual Operation操作 Function 功能 Comments Touch the MFB for 3 seconds from OFF state 按主控按键3秒 Power on the earbuds 开机 Touch the MFB for 5 seconds from ON state and when no music is played 按主控按键5秒 Power off the earbuds 关机 Touch the right earbud’s MFB 按右耳一次 Volume + 音量加 Touch the left earbud’s MFB 按左耳一次 Volume - 音量减 Double touch the either earbud’s MFB 双击左边/右边 Play/Pause 播放/暂停 Double touch the either earbud’s MFB during incoming call/on a call 来电或通话中双击左边/右边 Pick up/End call 接电话/挂断 Touch either earbud’s MFB for 1.5sec during incoming call 长按左边/右边1.5秒 Reject the call 拒接 Touch either earbud’s MFB for 2sec when no call 没有来电的情况下长按左/右边2秒 Switch between ANC modes 切换ANC模式 Triple-touch the right earbud’s MFB 三击右耳 Next track 下一曲 Triple-touch the left earbud’s MFB 三击左耳 Previous track 上一曲 Touch the right earbud’s MFB four times 按右耳4次 Trigger voice assistant 激活语音助手 Touch the left earbud’s MFB four times 按左耳4次 Gaming mode on/off 游戏模式开/关 Touch both earbud’s MFB five times when NOT connected to device Factory reset 恢复出厂设置 没有链接设备的状态下同时按左右两边MFB 5次 REQUIREMENTS TO FIRMWARE 软件要求 1)There should be no clicking sound prompts on touch. 触摸时没有点击的声音出现 2)If the earbuds are NOT connected to the device, they should turn off automatically in 15 minutes.耳机15分钟内没有链接到设备进入 关机 3)The internal earbuds volume should be 100% from the factory and the earbuds should remember the volume setting they had before turning off/on, the factory reset should return the volume to 100%. 内置出厂音量设置是100%，耳机在开关机之前要记忆音量，恢 复出厂设置后恢复到默认100%音量 4)The low battery notifications with sound prompt should be as follows: - the first notification at ~20% of the battery; -the second notification at ~10% of the battery; -the third notification right before the speaker turns off because of low battery. 低电语音提示应按以下：第一次在20%电量左右通知，第二次在10%电量，第三次应该在电量够喇叭输出最后一次提示 Three in total.低电总计提醒3次 5)There should be RED LED indication at 5% of the battery, the LED should blink every 5 seconds. 电池电量为 5%时应有红色 LED 指示， LED 每 5 秒闪烁一次 6)When the ANC and transparency modes are announced, the music volume should go down to about 1-2% so that the sound prompts could be heard.当降噪或通透模式被宣布时，音乐音量应该自动下降 1~2%以便于能听见语音提示 7)All the ANC models should be synchronized between the earbuds. If I use only one earbud and it is in transparency mode, then I take the second earbud from the case, this earbud should also be in transparency mode. 双耳的 ANC 模式应该被同步，如果我用一个耳机并且 处理通透模式下，然后我从充电仓中拿起另外一只耳机，这只耳机同样需要处于通透模式下。 8)Earbuds should turn ON with ANC ON, then, after long touching, should go transparency mode, then ANC OFF. 耳机开机就是降噪模 式，然后长按之后转换到通透模式，然后再是降噪关闭 REQUIREMENTS TO HARDWARE 硬件要求 1)Need to change the red/blue LEDs on the earbuds to red/white LEDs. 耳机红蓝灯改为红白灯 2)There should wireless charging feature for the case (if possible). 如果有空间的话加上无线充 3)The capacity of the case battery should be 400mAh as advertised, the earbuds battery should be 40mAh. 耳机电池40mah，充电仓电池400mah 4)There should be NO high-pitched noise when Transparency is ON and you cover the FF ANC mics with hands. 当通透模式打开并且用手遮住FF ANC麦克风时，应该没有高音噪音。 5)The case should have rubber oil coating. 充电仓上下盖喷橡胶油 LEDS INDICATION ON EARBUDS 耳机指示灯显示 - When the earbuds are being turned on, the white LEDs should light up and start blinking indicating the pairing mode. 耳机开机，白灯亮并闪 烁进入配对模式 - When earbuds are connected to the device, the white LEDs should be off. 当耳机链接设备，白灯熄灭 - When earbuds are being turned off, the white LEDs should light up and go off. 耳机关机，白灯亮然后熄灭 - When charging the red LEDs should be ON until fully charged. 充电时红灯亮直到充满后熄灭 - When earbuds battery level is 5%, the red LED should blink every 5 seconds until earbuds turn off because of the low battery level or put on charge. 当耳机电量5%，红灯每5秒闪烁一次直至关机或放进充电仓充电 EQ SETTING: QE设置 Should be per this file: 如附件文件 FCC Warning 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 inte rference received, including interference that may cause undesired operation. 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 interferenceto 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: ·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 technician for help. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

ProductechCorporation FederalCommunicationsCommission AuthorizationandEvaluationDivision EquipmentAuthorizationBranch 7435OaklandMillsRoad Columbia,MD21046 8/9/24 U.S.AgentDesignation ProductechCorporationacknowledgestheirconsentforthefollowingcontactlocatedintheUnitedStatestoact astheiragentforserviceofprocessfortheequipmentforwhichauthorizationissought(FCCID:2A889-X8): NameandcompanyofU.S.agent:ProductechCorporation PhysicalU.S.addressofagent:79014THSTNSUITE4240St.PetersburgFlorida33702United States FRNofU.S.agent:0033055674 EmailaddressofU.S.agent:[email protected] ProductechCorporationacknowledgestheirobligationtoacceptserviceofprocessonbehalfofProductech Corporation. ProductechCorporationwiththeFRN0033055674acceptsitsobligationtomaintainanagentforserviceof processintheUnitedStatesfornolessthanoneyearaftereitherthegranteehaspermanentlyterminatedall marketingandimportationoftheapplicableequipmentwithintheU.S.,ortheconclusionofanyCommission- relatedadministrativeorjudicialproceedinginvolvingtheequipment,whicheverislater. Bysigningthisform,weconfirmtheaboveandthatweareawareoftheapplicationrequirementslistedunder§ 2.911(d)(7). TheinformationprovidedinthisletterisbasedonthereferencedrulepartsofTitle47oftheCFRaswellasKDB 986446D01. Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,thegranteeisobligatedtonotify theFCCwithin30daysviathegrantingTCB. Sincerely, Signature AlexanderMalamud President ProductechCorporation Signature AlexanderMalamud President ProductechCorporation 4 8 _ [ m o d e l ] U S _ A g e n t _ 2 . 9 1 1 ( d ) ( 7 ) - U , V 0 5

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-08-09 Signature Date Name / Title: Alexander Malamud / President Company: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 Fax: +1-8338732522 E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2A889-X8 TREBLAB X8, X8-W, X8-BW We, applicant Company Name: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 certify that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-08-09 Signature Date Name / Title: Alexander Malamud / President Company: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 Fax: +1-8338732522 E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern 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 request confidentiality for the documentation of the following products: FCC ID Model name 2A889-X8 TREBLAB X8, X8-W, X8-BW For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics • the Part List • the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2024-08-09 Signature Date Name / Title: Alexander Malamud / President Company: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 Fax: +1-8338732522 E-Mail: [email protected]

Productech Corporation 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Date: August 9, 2024 FCC ID: 2A889-X8 Model Number: TREBLAB X8, X8-W, X8-BW To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Productech Corporation hereby declare that our product (True Wireless Earbuds) Model Number: TREBLAB X8, X8-W, X8-BW board, Schematic, Hardware version, Software version, structure and internal photos are same, named and appearance differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely, (Signed) Name / Title: Alexander Malamud / President Company: Productech Corporation Address: 7901 4TH ST N SUITE 4240 St. Petersburg, Florida 33702, United States Phone: +1-7276867370 Fax: +1-8338732522 E-Mail: [email protected]

Page 1 of 5 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity External Photos of the EUT Fig. 1 Fig. 2 Page 2 of 5 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 5 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Page 4 of 5 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7 Fig. 8 Page 5 of 5 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 9

Page 1 of 1 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity LABEL AND LOCATION (Size: L 0.5cm x W 0.5cm) Label Location True Wireless Earbuds Model: TREBLAB X8 FCC ID:2A889-X8

Page 1 of 4 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Internal Photos of the EUT Fig. 1 Fig. 2 Page 2 of 4 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 3 Fig. 4 Page 3 of 4 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 5 Fig. 6 Antenna Page 4 of 4 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Fig. 7 Fig. 8

Page 1 of 3 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity FCC RF Exposure Evaluation 1. Product Information Product name : True Wireless Earbuds Test Model : TREBLAB X8 Additional Model No. : X8-W,X8-BW Model Declaration : PCB board, structure and internal of these model(s) are the same, So no additional models were tested Ratings : Input: DC 5V, 400mA Battery: DC 3.7V, 40mAh Hardware Version : V5.4 Software Version : V5.4 Bluetooth Frequency Range : 2402MHz~2480MHz Channel Number : 79 channels for Bluetooth V5.4(DSS) Channel Spacing : 1MHz for Bluetooth V5.4(DSS) Modulation Type : GFSK, π/4-DQPSK, 8-DPSK for Bluetooth V5.4(DSS) Bluetooth Version : V5.4 Antenna Description : Chip Antenna, 2.7dBi(Max.) Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before Page 2 of 3 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“ [(max. power of channel, including tune-up tolerance, mW)/ (min. test separation distance, mm)] · [√f (GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, 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 result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below 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 f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b)The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0. 3. Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 -0.64 39 2441 -0.4 78 2480 -0.19 π/4DQPSK 0 2402 -0.12 39 2441 0.46 78 2480 0.48 8DPSK 0 2402 0.37 39 2441 0.9 78 2480 0.88 Page 3 of 3 FCC ID:2A889-X8 Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity 5. Manufacturing Tolerance <BT…

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2.4GHz1608ChipAntenna:RANT1608F245C04 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT1608F245C04 (A)(B)(C)(D)(E)(F) ElectricalSpecification DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 1.6x0.8mm( ± 0.1mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=04 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 1.60±0.10 W 0.80 ± 0.10 T 0.80 ± 0.10 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen, China 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ELECTRICALCHARACTERISTICSS11 Radiation ElectricalCharacteristics Freque ncy EfficPercenGain 2400-1.6472.27%2.38 2450-1.3375.34%2.7 2500-1.5972.98%2.59 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType1608 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 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 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 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz 1 6 0 8 Chip Antenna: RANT1608F245C04 _ 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 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen.

Page 1 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Appendix A RF Test Data for BT (Conducted Measurement) Product Name: True Wireless Earbuds Test Model: TREBLAB X8 Environmental Conditions Temperature: 23.8 C Relative Humidity: 52.1% ATM Pressure: 100.0 kPa Test Engineer: Paddi Chen Supervised by: Nick Peng Page 2 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.1 -20dB Bandwidth Condition Mode Frequency (MHz) Antenna -20 dB Bandwidth (MHz) Limit -20 dB Bandwidth (MHz) Verdict NVNT 1-DH5 2402 Ant 0.956 N/A Pass NVNT 1-DH5 2441 Ant 1.02 N/A Pass NVNT 1-DH5 2480 Ant 0.954 N/A Pass NVNT 2-DH5 2402 Ant 1.287 N/A Pass NVNT 2-DH5 2441 Ant 1.302 N/A Pass NVNT 2-DH5 2480 Ant 1.288 N/A Pass NVNT 3-DH5 2402 Ant 1.302 N/A Pass NVNT 3-DH5 2441 Ant 1.309 N/A Pass NVNT 3-DH5 2480 Ant 1.29 N/A Pass Page 3 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity Test Graphs -20dB Bandwidth NVNT 1-DH5 2402MHz Ant -20dB Bandwidth NVNT 1-DH5 2441MHz Ant Page 4 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 1-DH5 2480MHz Ant -20dB Bandwidth NVNT 2-DH5 2402MHz Ant Page 5 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 2-DH5 2441MHz Ant -20dB Bandwidth NVNT 2-DH5 2480MHz Ant Page 6 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 3-DH5 2402MHz Ant -20dB Bandwidth NVNT 3-DH5 2441MHz Ant Page 7 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity -20dB Bandwidth NVNT 3-DH5 2480MHz Ant Page 8 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check authenticity A.2 Maximum Peak Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT 1-DH5 2402 Ant -0.64 21 Pass NVNT 1-DH5 2441 Ant -0.4 21 Pass NVNT 1-DH5 2480 Ant -0.19 21 Pass NVNT 2-DH5 2402 Ant -0.12 21 Pass NVNT 2-DH5 2441 Ant 0.46 21 Pass NVNT 2-DH5 2480 Ant 0.48 21 Pass NVNT 3-DH5 2402 Ant 0.37 21 Pass NVNT 3-DH5 2441 Ant 0.9 21 Pass NVNT 3-DH5 2480 Ant 0.88 21 Pass Page 9 of 60 FCC ID:2A889-X8 Report No.: LCSA07094096EA Shenzhen LCS Compliance Testing Laboratory Ltd. Add: 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel: +(86) 0755-82591330 | E-mail: [email protected] | Web: www.lcs-cert.com Scan code to check a…

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