2ASDIESD6001B1MORE Stylish BT Pro In-Ear Headphones

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: - 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 - - This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter. -The SAR limit of USA (FCC) is 1.6 W/kg averaged over one gram of tissue. Device has also been tested against this SAR limit. This device was tested for typical body-worn operations with the back of the handset kept 0mm from the body. To maintain compliance with FCC RF exposure requirements, use accessories that maintain a 0mm separation distance between the user's body and the back of the handset. The use of belt clips, holsters and similar accessories should not contain metallic components in its assembly. The use of accessories that do not satisfy these requirements may not comply with FCC RF exposure requirements, and should be avoided. Accessories information：USB cable Operating temperature: 0°C-45°C Operating frequency range: 2400-2483.5MHz 2.4G Tx Frequency Range: 2402MHz~2480MHz; Outputpower: Bluetooth for classic:6dBm BLE:5.6dBm Declaration of Conformity Hereby, Tiinlab Acoustic Technology Limited declares that the radio equipment type ESD6001B of 1MORE Stylish BT Pro In-Ear Headphones is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.1more.com This device may be used in each member state.

Date: April. 23, 2020 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 To Whom It May Concern: The Tiinlab Acoustic Technology Limited ,the undersigned, hereby authorizes Mr. Wu Xuewen from Shenzhen BALUN Technology Co., Ltd., to act on the behalf of the Tiinlab Acoustic Technology Limited solely in matters relating to the application for an FCC equipment authorization for FCC ID : 2ASDIESD6001B including the signing of documents in connection with this Application. Necessary acts carried out by Shenzhen BALUN Technology Co., Ltd. in connection with the Application shall have the same effect as acts of the Tiinlab Acoustic Technology Limited. The Tiinlab Acoustic Technology Limited. 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. Section 862. Yours Sincerely, He Xiu Manager Tiinlab Acoustic Technology Limited

Date: April. 23, 2020 To: Federal Communications Commission, Authorization & Evaluation Division, 7435 Oakland Mills Road, Columbia, MD 21046 RE: Tiinlab Acoustic Technology Limited FCC ID: 2ASDIESD6001B FCC Certification Confidentiality Request Gentlemen: This letter is to comply with 47 CFR 0.457 and 0.459 pertaining to confidentiality material. Tiinlab Acoustic Technology Limited requests that the following documents regarding this submission for FCC ID: 2ASDIESD6001B be kept confidential: Exhibit TypeFile Name Block DiagramBlock Diagram.pdf SchematicsSchematics.pdf Operational DescriptionOperational Description.pdf Those documents contain detailed system and equipment description and related information about the product which Tiinlab Acoustic Technology Limited. considers to be confidential proprietary, a custom design and, otherwise, not releasable to the general public. Since this design is a basis form which future technological products will evolve,Tiinlab Acoustic Technology Limited. considers this information would be of benefit to its competitors, and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Thank you for your attention to this matter. Yours Sincerely, He Xiu Manager Tiinlab Acoustic Technology Limited

Annex No.: BL-SZ19B0063-AW 1 / 3 EUT EXTERNAL PHOTOS FRONT VIEW OF EUT REAR VIEW OF EUT Annex No.: BL-SZ19B0063-AW 2 / 3 LEFT SIDE VIEW OF EUT RIGHT SIDE OF EUT Annex No.: BL-SZ19B0063-AW 3 / 3 TOP VIEW OF EUT BOTTOM VIEW OF EUT

Annex No.: BL-SZ19B0063-AI 1 / 3 EUT INTERNAL PHOTOS EUT UNCOVER VIEW MAIN BOARD TOP VIEW RF Chip Slot Antenna Annex No.: BL-SZ19B0063-AI 2 / 3 MAIN BOARD REAR VIEW Battery Photo (FRONT) Annex No.: BL-SZ19B0063-AI 3 / 3 Battery Photo (REAR)

Report No.: BL-SZ19B0063-701 2 / 41 Revision History Version Issue Date Revisions Content Rev. 01 Apr. 22, 2020 Initial Issue Rev. 02 Apr. 28, 2020 Revised probe information in section 4.2.3. TABLE OF CONTENTS 1 ADMINSTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 4 1.1 Identification of the Testing Laboratory ...................................................................................... 4 1.2 Identification of the Responsible Testing Location ..................................................................... 4 1.3 Test Environment Condition ....................................................................................................... 4 1.4 Announce ................................................................................................................................... 5 2 PRODUCT INFORMATION ..................................................................................................................... 6 2.1 Applicant Information .................................................................................................................. 6 2.2 Manufacturer Information ........................................................................................................... 6 2.3 Factory Information .................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ............................................................... 6 2.5 Ancillary Equipment .................................................................................................................... 6 2.6 Technical Information ................................................................................................................. 7 3 SUMMARY OF TEST RESULTS ............................................................................................................. 8 3.1 Test Standards ........................................................................................................................... 8 3.2 Device Category and SAR Limit ................................................................................................. 8 3.3 Test Result Summary ............................................................................................................... 10 3.4 Test Uncertainty ....................................................................................................................... 11 4 SAR MEASUREMENT SYSTEM ........................................................................................................... 13 4.1 Definition of Specific Absorption Rate (SAR) ........................................................................... 13 4.2 SATIMO SAR System .............................................................................................................. 13 5 SYSTEM VERIFICATION ...................................................................................................................... 22 5.1 Antenna Port Test Requirement ............................................................................................... 22 5.2 Purpose of System Check ........................................................................................................ 22 5.3 System Check Setup ................................................................................................................ 22 6 EUT TEST POSITION CONFIGURATUONS ........................................................................................ 23 Report No.: BL-SZ19B0063-701 3 / 41 6.1 Head Exposure Conditions ....................................................................................................... 23 6.2 Body-worn Position Conditions ................................................................................................ 24 6.3 Hotspot Mode Exposure Position Conditions ........................................................................... 25 7 SAR MEASUREMENT PROCEDURES ................................................................................................ 26 7.1 SAR Measurement Process Diagram ...................................................................................... 26 7.2 SAR Scan General Requirements ............................................................................................ 27 7.3 SAR Measurement Procedure ................................................................................................. 28 7.4 Area & Zoom Scan Procedures ................................................................................................ 28 8 CONDUCTED RF OUPUT POWER ...................................................................................................... 29 8.1 Bluetooth .................................................................................................................................. 29 9 EUT ANTENNA LOCATION SKETCH .................................................................................................. 30 9.1 SAR Test Exclusion Consider Table ........................................................................................ 31 10 TEST RESULTS .................................................................................................................................... 32 10.1 Bluetooth .................................................................................................................................. 32 11 SAR Measurement Variability ................................................................................................................ 33 12 SIMULTANEOUS TRANSMISSION ...................................................................................................... 34 13 TEST EQUIPMENTS LIST .................................................................................................................... 35 ANNEX A SIMULATING LIQUI…

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ReportNo.:BL-SZ19B0063-701 CALIBRATIONREPORT F.1E-FieldProbe ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 F.22450MHzDipole ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701 ReportNo.:BL-SZ19B0063-701

Tested by: Approved by: ~~-+~-+------ Liao Jianming (Technical Director) Shenzhen BALUN Technology Co., Ltd. FOR Validation Dipoles &Waveguide LW-SZ2030763 SAR Validation Dipole and Wayeguide DIP 08750-446, DIP 08835-447 DIP 08900-448, DIP 18800-449 DIP 18900-450, DIP 28000-451 DIP 28450-452, DIP 28600-453 SW85500-W8A 42 SATIMO Pass Mar. 18, 2020 -Mar. 20, 2020 N OTE: This test report can be duplicated completely for the legal use with the approval of the applicant; it shall not be reproduced except in full, without the written approval of Shenzhen BALUN Technology Co., Ltd. BALUN Laboratory. Any objections should be raised within thirty days from the date of issue. To validate the report, please visit BALUN website. Block B, I st FL,Baisha Science and Technology Park, Shahe Xi Road, Nanshan District, Shenzhen, Guangdong, P. R. China 518055 TEL: +86-755-668501 00, FAX: +86-755-61824271 Email: [email protected] www.baluntek.com 2/25 1GENERALINFORMATION 1.1Introduction ThisdocumentcontainsasummaryoftherequirementssetforthbytheIEEE1528,FCCKDB865664 D01forreferencedipolesusedforSARmeasurementsystemvalidations.Insteadofthetypicalannual calibrationrecommendedbymeasurementstandards,thereferencedipolesweredemonstratedthatthe SARtarget,impedanceandreturnlosshaveremainstable,sothelongercalibrationintervalis acceptable. 1.2GeneralDescriptionforEquipmentunderTest(EUT) ModelFrequencySerialNumber Product Condition(New/ Used) LastCal. Date LastMeas. Date Dipole DIP0G750750MHz SN11/17 DIP0G750-446 Used2019/03/202020/03/18 DIP0G835835MHz SN11/17 DIP0G835-447 Used2019/03/202020/03/18 DIP0G900900MHz SN11/17 DIP0G900-448 Used2019/03/202020/03/18 DIP1G8001800MHz SN11/17 DIP1G900-449 Used2019/03/202020/03/19 DIP1G9001900MHz SN11/17 DIP1G900-450 Used2019/03/202020/03/19 DIP2G0002000MHz SN11/17 DIP2G000-451 Used2019/03/202020/03/19 DIP2G4502450MHz SN11/17 DIP2G450-452 Used2019/03/202020/03/19 DIP2G6002600MHz SN11/17 DIP2G600-453 Used2019/03/202020/03/19 Waveguide SWG55005GHz-6GHz SN49/16 WGA42 Used2019/03/202020/03/20 3/25 1.3TestEquipmentList DescriptionManufacturerModelSerialNo.Cal.DateCal.Due PCDellN/AN/AN/AN/A E-FieldProbeMVGSSE2SN34/15SSE2EPGO2652019/05/162020/05/15 Phantom1SATIMOSAMSN30/13SAM103N/AN/A Phantom2SATIMOSAMSN30/13SAM104N/AN/A MultiMeterKeithley MultiMeter 2000 40240222019/06/172020/06/16 SignalGeneratorR&SSMBV100A2605922019/06/132020/06/12 PowerMeterR&SNRVD-B27250BJ-0112/20112019/10/302020/10/29 PowerSensorR&SNRV-Z41003812019/10/302020/10/29 PowerSensorR&SNRV-Z21002112019/10/302020/10/29 SignalGeneratorR&SSMBV100A2605922019/06/132020/06/12 ThermometerElitechRC-4HCN/A2019/11/022020/11/01 PowerAmplifierSATIMO6552B22374N/AN/A DielectricProbeKitSATIMOSCLMPSN25/13OCPG56N/AN/A AttenuatorCOM-MWZA-S1-311305003187N/AN/A DirectionalcouplerAA-MCSAAMCS-UDC000272N/AN/A 4/25 1.4EUTPhotos DIP0G750-446 DIP0G835-447 5/25 DIP0G900-448 DIP1G800-449 DIP1G900-450 DIP2G000-451 6/25 DIP2G450-452 DIP2G600-453 WaveguideSWG5500 7/25 2DIPOLEIMPEDANCEANDRETURNLOSS Thedipolesaredesignedtohavelowreturnlosswhenpresentedagainstaflatphantomatthespecified distance.AVectorNetworkAnalyzerwasusedtoperformareturnlossmeasurementonthespecificdipole wheninthemeasurementlocationagainstthephantomandthedistancewasspecifiedbythemanufacturer withaspecial,lowlossandlowrelativepermittivityspacer. TheimpedancewasmeasuredattheSMA-connectorwiththenetworkanalyzer. Themeasurementofverificationwithreturnlossshouldnotdeviatebymorethan20%andminimumof20dBof thereturnloss,andtheimpedance(realorimaginaryparts)shouldnotdeviatebymorethan5Ohmsfromthe previousmeasurementusingnetworkanalyzer. Note: The“PreviousMeas.”inthefollowingtablerefertodipolesorotherequivalentRFsourcescalibrationreports. 8/25 2.1DIP0G750 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-26.12-32.481.1% Impedance53.2Ω+2.7jΩ51.6Ω+1.7jΩ 0.8Ω (Imaginarypart) ReturnLoss Impedance 9/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-26.69-23.503.8% Impedance50.1Ω+5.4jΩ48.8Ω+6.6jΩ 1.0Ω (Realpart) ReturnLoss Impedance 10/25 2.2DIP0G835 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-31.42-34.073.1% Impedance55.6Ω-3.4jΩ49.3Ω+1.8jΩ 2.3Ω (Imaginarypart) ReturnLoss Impedance 11/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-24.02-22.964.0% Impedance47.3Ω+5.0jΩ45.3Ω+5.3jΩ 0.9Ω (Realpart) ReturnLoss Impedance 12/25 2.3DIP0G900 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-30.91-30.382.0% Impedance50.39Ω-2.4jΩ51.8Ω-2.4jΩ 1.4Ω (Realpart) ReturnLoss Impedance 13/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-28.58-27.293.5% Impedance54.4Ω+2.1jΩ53.4Ω+2.6jΩ 0.3Ω (Realpart) ReturnLoss Impedance 14/25 2.4DIP1G800 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-23.52-25.493.1% Impedance41.6Ω+3.3jΩ45.4Ω+2.6jΩ 3.2Ω (Realpart) ReturnLoss Impedance 15/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-26.39-26.353.7% Impedance46.0Ω+3.4jΩ45.4Ω-1.5jΩ 1.8Ω (Realpart) ReturnLoss Impedance 16/25 2.5DIP1G900 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-27.40-24.2016.2% Impedance52.4Ω+6.6jΩ51.2Ω+6.0jΩ 1.4Ω (Imaginarypart) ReturnLoss Impedance 17/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-25.02-22.4512.2% Impedance50.4Ω+6.6jΩ46.7Ω+6.7jΩ 2.8Ω (Realpart) ReturnLoss Impedance 18/25 2.6DIP2G000 RETURNLOSSANDIMPEDANCEINHEADLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-24.19-24.613.6% Impedance53.8Ω–1.0jΩ54.3Ω–4.0jΩ 1.9Ω (Realpart) ReturnLoss Impedance 19/25 RETURNLOSSANDIMPEDANCEINBODYLIQUID Meas.ResultsCurrentMeas.PreviousMeas.Max.Deviation ReturnLoss(dB)-…

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Report No.: BL-SZ19B0063-602 2 / 66 Revision History Version Issue Date Revisions Content Rev. 01 Apr. 22, 2020 Initial Issue Rev. 02 Apr. 28, 2020 Added the data of BLE 2 Mbps. TABLE OF CONTENTS 1 ADMINISTRATIVE DATA (GENERAL INFORMATION) .......................................................................... 5 1.1 Identification of the Testing Laboratory ....................................................................................... 5 1.2 Identification of the Responsible Testing Location ...................................................................... 5 1.3 Laboratory Condition ................................................................................................................... 5 1.4 Announce .................................................................................................................................... 5 2 PRODUCT INFORMATION ...................................................................................................................... 6 2.1 Applicant Information ................................................................................................................... 6 2.2 Manufacturer Information ............................................................................................................ 6 2.3 Factory Information ..................................................................................................................... 6 2.4 General Description for Equipment under Test (EUT) ................................................................ 6 2.5 Technical Information .................................................................................................................. 7 2.6 Additional Instructions ................................................................................................................. 8 3 SUMMARY OF TEST RESULTS .............................................................................................................. 9 3.1 Test Standards ............................................................................................................................ 9 3.2 Verdict ......................................................................................................................................... 9 4 GENERAL TEST CONFIGURATIONS ................................................................................................... 10 4.1 Test Environments .................................................................................................................... 10 4.2 Test Equipment List ................................................................................................................... 10 4.3 Measurement Uncertainty ......................................................................................................... 11 4.4 Description of Test Setup .......................................................................................................... 12 4.4.1 For Antenna Port Test ............................................................................................................... 12 4.4.2 For AC Power Supply Port Test ................................................................................................ 12 4.4.3 For Radiated Test (Below 30 MHz) ........................................................................................... 13 4.4.4 For Radiated Test (30 MHz-1 GHz) .......................................................................................... 13 4.4.5 For Radiated Test (Above 1 GHz) ............................................................................................. 14 4.5 Measurement Results Explanation Example ............................................................................. 15 4.5.1 For conducted test items: .......................................................................................................... 15 Report No.: BL-SZ19B0063-602 3 / 66 4.5.2 For radiated band edges and spurious emission test: ............................................................... 15 5 TEST ITEMS ........................................................................................................................................... 16 5.1 Antenna Requirements .............................................................................................................. 16 5.1.1 Relevant Standards ................................................................................................................... 16 5.1.2 Antenna Anti-Replacement Construction .................................................................................. 16 5.1.3 Antenna Gain ............................................................................................................................ 16 5.2 Output Power ............................................................................................................................ 17 5.2.1 Test Limit ................................................................................................................................... 17 5.2.2 Test Setup ................................................................................................................................. 17 5.2.3 Test Procedure .......................................................................................................................... 17 5.2.4 Test Result ................................................................................................................................ 18 5.3 Occupied Bandwidth ................................................................................................................. 19 5.3.1 Limit ........................................................................................................................................... 19 5.3.2 Test Setup ................................................................................................................................. 19 5.3…

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Annex No.: BL-SZ19B0063-AR TEST SETUP PHOTOS 1 Radiated Test Photo Below 30 MHz 30 MHz-1 GHz Annex No.: BL-SZ19B0063-AR Close-Up Above 1GHz Annex No.: BL-SZ19B0063-AR Close-Up 2 Conducted Emissions Test Photo 1 Annex No.: BL-SZ19B0063-AR Test Photo 2 3 Conducted Test Photo Conducted Test-BT Annex No.: BL-SZ19B0063-AR Conducted Test-BLE

Annex No.: BL-SZ19B0063-AS 1 / 1 SAR TEST SETUP PHOTOS Headset (0mm)