2A9QD-BH4010DAO Wireless TWS

DAO TWS User Guide Manufacturer: Shenzhen Tengfei Technology Address:Room ����, Building D�,Chuangzhi Yun cheng,Liuxian Avenue, Xili Street, NanshanDistrict, Shenzhen,China. website:https://fstin.io/en/ Earbuds Charging Case Base Dongle Type-C Cable Type-C charging Knob Dongle connection �.Plug the Type-C cable into the charging case to start charging. �.When the charging case is placed on the base with a power supply, it will start wireless charging automatically. �.When the earbuds are put into the charging case and the lid is closed, the earbuds start charging. �.The earbuds and the charging case can be charged simultaneously. �.How charging indicator light blink when charging the charging case: The light blinks green and stops when fully charged. Installation and operation EarbudsBase Product Name: DAO TWS Product model: BH���� Bluetooth pairing name： DAO TWS Charging Case Operating Frequency Battery Capacity Maximum Power Earbuds*� / Charging Case*� / Dongle*� / Base*� / Type-C Cable*� / Portable pouch*� / Large, medium, and small earbud tips*� / Protective film*� / User Guide*� Installation and operation Installation and operation Product Specifications Earbuds Functions: Left earbud (L) Right earbud (R) Play/Pause End Ongoing Call Turn On/Off ANC Mode Music/Game Mode Switch Tap twice Tap twice Tap twice Tap twice Tap three times Tap three times Mode Switching Calling Status Answer Incoming Call Music Playback Tap twice Next song Tap twice In-ear Detection: �.After starting playing on the smartphone or the earbuds, the in-ear detection function is activated. The music is automatically paused when the earbuds are removed and automatically played when the earbuds are put back on. �.After pausing on the smartphone or the earbuds, the in-ear detection function is deactivated temporarily and music will not be automatically paused or played when the earbuds are removed or put on. Charge the charging case Press the function key of the charging case Open the lid ActionBattery LevelLight Effect <��% Between ��% and ��%the light blinks yellow for � seconds >��% >��% <��%the light blinks red Battery Level Display: Product Diagram USB cable connection Automatic Pairing When the charging case is opened and the earbuds are not removed, put the charging case close to the connected mobile phone automatic pairing, using the top player app support pop-up window Power On/Off �.When the charging case is opened, the earbuds turn on automatically and both blink blue light. �.When the earbuds are put back into the charging case and the lid is closed, the Bluetooth connection is automatically turned off and charging starts. Automatic Reconnect When the charging case is opened, the earbuds reconnect to the last paired smartphone or Dongle by default. Out-of-Range Search When the smartphone connected moves out of range, the earbuds start searching for reconnection. Automatic Shutdown The earbuds will automatically shut down when no devices are paired or connected within � minutes. Force pairing When the charging case is opened and the earbuds are not removed, press the function key for � seconds to force pairing. Pairing/Connection Dongle V�.� Product Specifications： ����-����MHz Input voltage/ current �V �A Output voltage/ current �V ���MA����-����MHz ��mAh <�dBm(EIRP) <�dBm(EIRP) ���mAh Supported Protocol Singlemode LE Battery Capacity Bluetooth Version Contents the light blinks red for � seconds the light blinks green for � seconds the light blinks blue �. Please do not take apart or repair and remodel the earbuds for any reason, or else this may cause fire, electrical breakdown or completely damage the product. �. Please do not use oils or other volatile liquids to wipe this product. �. Please do not leave the device in an environment where the temperature is too high or too low (above �� °C or below -�� °C). �. Please do not use the device during thunderstorm, for it may cause the device to malfunction and increase the risk of electric shock. �. Please do not continuously wear the earbuds for a long period of time (more than � hours), in particular, do not listen at the maximum volume for a long period of time. �. Please do not wear earbuds when cycling or driving. This might be considered illegal in some countries. �. This product contains lithium batteries. Do not take apart, hit, squeeze or throw it into fire. If swelling occurs, please do not use the product. Please do not place the product in a high-temperature environment. Please dispose of the batteries in accordance with local regulations and do not put them in the household garbage or recycling bins. Warnings Installation and operation Installation and operation Top Player App Download and install the Top Player App by scanning the QR code below to quickly connect your gaming peripherals and set device parameters. Get ready for starting your professional mobile gaming tour now! Base/Dongle �.“ ”for USB cable connection,and “ ”for Dongle connection. �.When the Dongle mode is turned on, the earbuds automatically connect to the Dongle and disconnect from the smartphone. �.When the Dongle mode is turned off, the earbuds restart searching. �. Connect the earphone to the computer: open the cover of the charging case, connect the Base to power, click the knob, and the Dongle red light is on. KnobFunctionLight Effect On/Off Mode Switch Press Turn the Dongle Mode On/Off� blue blinks Double Press Toggle Dongle Game/Music mode� red blinks Light effect switch Press and Hold for � Seconds Switch Light Effect Mode Colorful Gradient/Colorful Blink/ Single Color Gradient/Off Volume Adjustment Turn left/right to decrease/ increase volume Turn Functions and Actions: Knob Top Player App Top Player App Tap Touch Function key Operating Frequency Maximum Power Clear Pairing Record When the charging case is opened and the earbuds are not removed, press the function key quickly � times to clear the pairing record. Connect for the first time When the charging case is …

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Left earphone Right earphone

ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page1of7 RFEXPOSUREREPORT ReportNo.:20240117G01635X-W4 ProductName:DAOWirelessTWS ModelNo.:BH4010 FCCID:2A9QD-BH4010 Applicant:ShenzhenTengfeiTechnologyManagementLtd. Address: Room3101,BuildingD1,ChuangzhiYuncheng,LiuxianAvenue,Xili Community,XiliStreet,NanshanDistrict,Shenzhen DatesofTesting:01/23/2024-03/14/2024 Issuedby:CCICSouthernTestingCo.,Ltd. LabLocation: ElectronicTestingBuilding,No.43ShaheRoad,XiliStreet, NanshanDistrict,Shenzhen,Guangdong,China. Tel:8675526627338Fax:8675526627238 Thistestreportconsistsof7pagesintotal.Itmaybeduplicatedcompletelyforlegalusewith theapprovaloftheapplicant.Itshouldnotbereproducedexceptinfull,withoutthewritten approvalofourlaboratory.Theclientshouldnotuseittoclaimproductendorsementby CCIC-SET.Thetestresultsinthereportonlyapplytothetestedsample.Thetestreportshall beinvalidwithoutallthesignaturesoftestingengineers,reviewerandapprover.Any objectionsmustberaisedtoCCIC-SETwithin15dayssincethedatewhenthereportis received.Itwillnotbetakenintoconsiderationbeyondthislimit. ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page2of7 TestReport Product......................................:DAOWirelessTWS BrandName ............................. :DAO TradeName ............................ :DAO Applicant...................................:ShenzhenTengfeiTechnologyManagementLtd. ApplicantAddress..................: Room3101,BuildingD1,ChuangzhiYuncheng,Liuxian Avenue,XiliCommunity,XiliStreet,NanshanDistrict, Shenzhen Manufacturer ............................ :ShenzhenTengfeiTechnologyManagementLtd. ManufacturerAddress...........: Room3101,BuildingD1,ChuangzhiYuncheng,Liuxian Avenue,XiliCommunity,XiliStreet,NanshanDistrict, Shenzhen TestStandards ........................ :47CFRPart2.1093 TestResult ................................ :Pass Testedby.................................: 2024.03.14 ChuiwangZhang,TestEngineer Reviewedby ............................. : 2024.03.14 ChrisYou,SeniorEngineer Approvedby............................: 2024.03.14 YangFan,Manager [ 盖章 ] ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page3of7 TABLEOFCONTENTS 1.GENERALINFORMATION......................................................................................................5 1.1.EUTDescription..........................................................................................................................5 1.2.EUTDescription..........................................................................................................................6 1.3.LaboratoryFacilities....................................................................................................................6 1.4.LaboratoryLocation....................................................................................................................6 2.TECHNICALREQUIREMENTSSPECIFICATIONINCFRTITLE47PART2.1093......7 2.1.Evaluationmethod.......................................................................................................................7 2.2.EvaluationResults.......................................................................................................................7 2.3.Conclusion...................................................................................................................................7 ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page4of7 ChangeHistory IssueDateReasonforchange 1.02024.03.14Firstedition ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page5of7 1.GENERALINFORMATION 1.1.EUTDescription ProductNameDAOWirelessTWS ModelNo.BH4010 DeviceTypePortableDevice OperationFrequency2402MHz~2480MHz ModulationType BT:GFSK,π/4-DQPSK,8DPSK BLE:GFSK Antennagain1.90dBi AntennaTypeInternalAntenna Note1:Theinformationofantennagainandcablelossisprovidedbythemanufacturerandourlab isnotresponsiblefortheaccuracyoftheantennagainandcablelossinformation. ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page6of7 1.2.EUTDescription EUThasbeentestedaccordingtothefollowingstandards. No.IdentityDocumentTitle 147CFRPart1PracticeandProcedure 247CFRPart2 FrequencyAllocationsandRadioTreatyMatters;General RulesandRegulations 3 KDB447498D01General RFExposureGuidancev06 RFExposureProceduresandEquipmentAuthorization PoliciesforMobileandPortableDevices 1.3.LaboratoryFacilities FCC-RegistrationNo.:406086 CCICSouthernTestingCo.,LtdEMCLaboratoryhasbeenregisteredandfullydescribedinareport filedwiththeFCC(FederalCommunicationsCommission).TheacceptanceletterfromtheFCCis maintainedinourfiles.DesignationNumber:CN1283,validtimeisuntilJun.30th,2025. ISEDRegistration:11185A CCICSouthernTestingCo.,Ltd.EMCLaboratoryhasbeenregisteredbyCertificationand EngineeringBureauofIndustryCanadafortheperformanceofradiatedmeasurementswith RegistrationNo.11185AonAug.04,2016,validtimeisuntilJun.30th,2025. CABnumber:CN0064 A2LACode:5721.01 CCIC-SETisathirdpartytestingorganizationaccreditedbyA2LAaccordingtoISO/IEC17025. Theaccreditationcertificatenumberis5721.01. 1.4.LaboratoryLocation CompanyName:CCICSouthernTestingCo.,Ltd. Address: ElectronicTestingBuilding,No.43ShaheRoad,XiliStreet,Nanshan District,Shenzhen,Guangdong,China ReportNo.:20240117G01635X-W4 CCIC-SET/TRF:IRF(2019-05-23)Page7of7 2.TechnicalRequirementsSpecificationinCFRTitle47Part2.1093 2.1.Evaluationmethod Accordingto447498D01GeneralRFExposureGuidancev06MobileandPortableDevicesRF ExposureProceduresandEquipmentAuthorizationPolicies. The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzattestseparationdistances≤ 50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance, mm)]·[ f(GHz) ]≤3.0for1-gSARand≤7.5for10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbeforecalculation Theresultisroundedtoonedecimalplaceforcomparison 2.2.EvaluationResults Mode Frequency (GHz) MaximumOutputPower (dBm) P(mW)Distance(mm)ResultsLimit BLE2.4403.2990.405.000.67≤3.0…

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Report No.: 20240117G01635X-W3 CCIC-SET/ TRF:IRF(2019-05-23) Page 1 of 59 RF TEST REPORT Report No.: 20240117G01635X-W3 Product Name: DAO Wireless TWS Model No.: BH4010 FCC ID: 2A9QD-BH4010 Applicant: Shenzhen Tengfei TechnologyManagement Ltd. Address: Room 3101, Building D1,ChuangzhiYuncheng, Liuxian Avenue, Xili Community, XiliStreet, Nanshan District, Shenzhen Dates of Testing: 01/23/2024 - 03/14/2024 Issued by: CCIC Southern Testing Co., Ltd. Lab Location: Electronic Testing Building, No. 43 Shahe Road, Xili Street, Nanshan District, Shenzhen, Guangdong, China. Tel：86 755 26627338 Fax：86 755 26627238 This test report consists of 59 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by CCIC-SET. The test results in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. Any objections must be raised to CCIC-SET within 15 days since the date when the report is received. It will not be taken into consideration beyond this limit. Report No.: 20240117G01635X-W3 CCIC-SET/ TRF:IRF(2019-05-23) Page 2 of 59 Test Report Product ................................. : DAO Wireless TWS Brand Name .......................... : DAO Trade Name ......................... : DAO Applicant ............................... : Shenzhen Tengfei TechnologyManagement Ltd. Applicant Address................ : Room 3101, Building D1,ChuangzhiYuncheng, Liuxian Avenue, Xili Community, XiliStreet, Nanshan District, Shenzhen Manufacturer ........................ : Shenzhen Tengfei TechnologyManagement Ltd. Manufacturer Address ......... : Room 3101, Building D1,ChuangzhiYuncheng, Liuxian Avenue, Xili Community, XiliStreet, Nanshan District, Shenzhen Test Standards ...................... : 47 CFR Part 15 Subpart C 15.247 ANSI C63.10-2013 Test Result ............................ : Pass [盖章] Tested by ............................. : 2024.03.14 Chuiwang Zhang, Test Engineer Reviewed by ......................... : 2024.03.14 Chris You, Senior Engineer Approved by ......................... : 2024.03.14 Yang Fan, Manager Report No.: 20240117G01635X-W3 CCIC-SET/ TRF:IRF(2019-05-23) Page 3 of 59 TABLE OF CONTENTS TABLE OF CONTENTS ................................................................................................................. 3 1. GENERAL INFORMATION ...................................................................................................... 5 1.1. EUT Description ......................................................................................................................... 5 1.2. Test Standards and Results .......................................................................................................... 6 1.3. Frequency Hopping System Requirements ................................................................................. 7 1.4. Table for Supporting Units .......................................................................................................... 8 1.5. EUT Operation Test Setup .......................................................................................................... 8 1.6. Test environment and mode ........................................................................................................ 8 1.7. Facilities and Accreditations ....................................................................................................... 9 2. TEST REQUIREMENT ............................................................................................................ 10 2.1. Antenna requirement ................................................................................................................. 10 2.2. Number of Hopping Frequency ................................................................................................. 11 2.3. Maximum Conducted Output Power ........................................................................................ 13 2.4. 20dB Emission Bandwidth........................................................................................................ 15 2.5. Carried Frequency Separation ................................................................................................... 17 2.6. Dwell time ................................................................................................................................. 19 2.7. Conducted Spurious Emissions ................................................................................................. 21 2.8. Conducted Band Edge ............................................................................................................... 23 2.9. Radiated Band Edges and Spurious Emission .......................................................................... 25 2.10. AC Power Line Conducted Emission...................................................................................... 33 3. LIST OF MEASURING EQUIPMENT ................................................................................... 35 4. UNCERTAINTY OF EVALUATION ....................................................................................... 36 APPENDIX A ................................................................................................................................. 37 Report No.: 20240117G01635X-W3 CCIC-SET/ TRF:IRF(2019-05-23) Page 4 of 59 Change History Issue Date Reason for change 1.0 2024.03.14 First edition Report No.: 20240117G01635X-W3 CCIC-SET/ TRF:IRF(2019-05-23) Page 5 of 59 1. General Information 1.1. EUT Description Product Name DAO Wireless TWS EUT supports Radios application Bluetooth V5.3 Frequency Range 2402MHz~2480MHz Channel Number 79 Bit Rate of Transmitter 1/2/3Mbps Modulation Type GFSK, π/4-DQPSK, 8DPSK Antenna Type Internal Antenna Antenn…

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5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 1 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com Product Name: WiFi/Bluetooth Chip Antenna – CW201 Part Number: H2U34C1H1B0100 Features: z Supporting WiFi/Bluetooth, covering 2400 to 2484 MHz z Surface Mount z Dimensions: 2.0 x 1.2 x 0.6 mm z High performance, small size. z RoHS & REACH Compliant Applications: z ISM 2.4 GHz applications z ZigBee/BLE applications z Bluetooth earphone systems z Hand-held devices when WiFi / Bluetooth functions are needed, e.g., Smart phones z IEEE802.11 b/g/n z Wireless PCMCIA cards or USB dongles 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 2 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com WiFi/Bluetooth Chip Antenna MODEL: CW201 Version: A I. Specifications: Mechanical Specifications Dimensions (mm) 2.0(L) x 1.2 (W) x 0.6 (H) Material Ceramic Termination Ag (environmental Pb free) Environmental Conditions Operation Temperature ( o C) -40 ~ +85 Storage Temperature ( o C) -5 ~ +40 Relative Humidity 10 ~ 70 % Items Specifications Frequencies (MHz) 2400~2484 Efficiency (%) 59.2 Average Gain (dB) -2.3 Peak Gain (dBi) 1.9 Test Condition 40 x 20 mm² (Evaluation board) Impedance (ƻ) 50 Polarization Linear Polarization 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 3 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com II. Layout Guide: Solder Land Pattern: The solder land pattern (gold marking areas) is shown below. Recommendation on matching circuit will be provided according to customer’s installation conditions. Grounding Pin Signal Input Transmission Line with 50ƻ Impedance Characteristic Top View Bottom View 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 4 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com III. Mechanical Dimensions: a) Antenna Dimensions b) PIN Definition PIN 1 2 Soldering Pad Signal Input Tuning/Signal Output TOP View Bottom View Side View Unit: mm Unit: mm 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 5 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com c) Test Board with Antenna Unit: mm 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 6 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com IV. Properties: a) Return loss (dB) b) Efficiency (%) 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 7 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com c) Average Gain (dB) d) Peak Gain (dBi) 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 8 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com V. Antenna Radiation Pattern Measurement: The antenna radiation patterns are measured in Unictron’s 3D Anechoic Chamber. The measurement setup is as show below. Z Y X 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 9 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com 3D Radiation Gain Pattern 2450 MHz (unit: dBi) X Y Z 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 10 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com VI. Frequency tuning: System Matching Circuit Component Location Description Vendor Tolerance 1 N/C - - 2 5.0 pF (0402) MURATA ±0.05 pF 3 0.8 pF (0402) MURATA ±0.05 pF 4 2.7 pF (0201) MURATA ±0.05 pF DC Block 22 pF (0402) MURATA ±5% 1 3 2 DC Block 4 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 11 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com VII. Soldering conditions: Typical Soldering Profile for Lead-free Process VIII. Reminders for use of Unictron’s ceramic chip antennas: a) This chip antenna is made of ceramic materials which is relatively more rigid and brittle compared to circuit board materials. Furthermore, the length of this antenna is quite long. Bending of circuit board at the locations where chip antenna is mounted may cause the cracking of solder joints or antenna itself. b) Punching/cutting of the break-off tab of PCB panel may cause severe bending of the circuit board which may result in cracking of solder joints or chip antenna itself. Therefore break-off tab shall be located away from the installation site of chip antenna. c) Be cautious when ultrasonic welding process needs to be used near the locations where chip antennas are installed. Strong ultrasonic vibration may cause the cracking of chip antenna solder joints. 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 12 © Unictron Technologies Corp . All specifications subject to change with…

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