2AUD6-TS40TWS Bluetooth Earbuds

FCC Caution： This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

ShenzhenShengnaTechnology.,Ltd. AgentAuthorization Company:ShenzhenShengnaTechnology.,Ltd. Address:3Fwest,Building17,LongbiIndustrialTown,Bantian,Longgang District,Shenzhen,China ProductName:TWSBluetoothEarbuds ModelNumber(s):TS40 ProductDescription:TWSBluetoothEarbuds WeauthorizeMiCOMLabsInc.,575BoulderCourt,Pleasanton,California94566,USA, toactonourbehalfonallmattersconcerningthecertificationofabovenamed equipment. WedeclarethatMiCOMLabsInc.isallowedtoforwardallinformationrelatedtothe approvalandcertificationofequipmenttotheregulatoryagenciesasrequiredandto discussanyissuesconcerningtheapprovalapplication.Anyandallactscarriedoutby MiCOMLabsonourbehalfshallhavethesameeffectasactsofourown. Signature:Date:2020/3/5 Name:ANDYliu Title:Manager Company:ShenzhenShengnaTechnology.,Ltd.

ShenzhenShengnaTechnology.,Ltd. OfficeofEngineeringTechnology FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 USA Date:2020/3/3 Subject;RequestforConfidentiality FCCID:2AUD6-TS40 ToWhomItMayConcern, PursuanttotheprovisionsoftheCommission’srulesTitle47Sections§0.457and§0.459,we arerequestingtheCommissiontowithholdthefollowingattachment(s)asconfidential documentsfrompublicdisclosureindefinitely. Thesedocumentscontaindetailedsystemandequipmentdescriptionsandareconsideredas proprietaryinformationinoperationoftheequipment.Thepublicdisclosureofthesedocuments mightbeharmfultoourcompanyandwouldgivecompetitorsanunfairadvantageinthemarket. SchematicDiagram BlockDiagram OperationalDescription Inadditionaltoabovementioneddocuments,inordertocomplywiththemarketingregulations inTitle47CFR§2.803andtheimportationrulesinTitle47CFR§2.1204,whileensuringthat businesssensitiveinformationremainsconfidentialuntiltheactualmarketingofnewly authorizeddevices,werequestShortTermConfidentialityofthefollowingattachment(s); UserManual For45days,pursuanttoPublicNoticeDA04-1705. OR For180dayspursuanttoKDB726920D01. Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondenceduringthecertificationreviewprocesscannotbegrantedasconfidential documentsandthisinformationwillbeavailableforpublicreviewoncethegrantofequipment authorizationisissued. Sincerely, Signature: Name:ANDYliu Title:Manager

ExternalPhotos

Size:10*5mm Label location M/N: TWS Bluetooth Earbuds FCC ID: 2AUD6-TS40

InternalPhotos Antenna Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2AUD6-TS40 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 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 is applied to determine SAR test exclusion. BT-EDR Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low 2.32 21 GFSK Middle 1.73 21 GFSK High 0.87 21 Pi/4 DQPSK Low 2.48 21 Pi/4 DQPSK Middle 2.24 21 Pi/4 DQPSK High 1.46 21 8DPSK Low 2.68 21 8DPSK Middle 2.57 21 8DPSK High 1.90 21 max possible output power (PK,conducted)：3±1dBm 0dBi logarithmic terms convert to numeric result is nearly 1 4dBm=2.51mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=2.51/5*√2.402 =0. 78≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 2. 51/5*√2.441 =0. 78≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=2.51/5*√2.48=0. 79≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000181E FCC Part 15C Test Report FCC ID: 2AUD6-TS40 Product Name: TWS Bluetooth Earbuds Trademark: N/A Model Name : TS40 Prepared For : Shenzhen Shengna Technology., Ltd. Address : 3F west, Building 17, Longbi Industrial Town, Bantian, Longgang District, Shenzhen, China Prepared By : Shenzhen BCTC Testing Co., Ltd. Address : BCTC Building & 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China Test Date: Feb. 25, 2020 – Mar. 05, 2020 Date of Report : Mar. 05, 2020 Report No.: BCTC2002000181E Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 1 of 70 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000181E TEST RESULT CERTIFICATION Applicant’s name ............. : Shenzhen Shengna Technology., Ltd. Address .............................. : 3F west, Building 17, Longbi Industrial Town, Bantian, Longgang District, Shenzhen, China Manufacture's Name ........ : Shenzhen Shengna Technology., Ltd. Address .............................. : 3F west, Building 17, Longbi Industrial Town, Bantian, Longgang District, Shenzhen, China Product description Product name..................... : TWS Bluetooth Earbuds Trademark ......................... : N/A Model and/or type reference TS40 Standards ......................... : FCC Part15.247 ANSI C63.10:2013 This device described above has been tested by BCTC, and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of BCTC, this document may be altered or revised by BCTC, personal only, and shall be noted in the revision of the document. Prepared by(Engineer): Kelsey Tan Reviewer(Supervisor): Eric Yang Approved(Manager): Zero Zhou Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 2 of 70 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000181E Table of Contents Test Report Declaration Page 1. TEST SUMMARY ...................................................... 5 2. TEST FACILITY ....................................................... 6 3. MEASUREMENT UNCERTAINTY........................................ 6 4. GENERAL INFORMATION .............................................. 7 4.1 GENERAL DESCRIPTION OF EUT ...................................... 7 4.2 Test Setup Configuration ................................................ 8 4.3 Support Equipment ..................................................... 8 4.4 Channel List ........................................................... 9 4.5 Test Mode ............................................................ 10 5. TEST FACILITY AND TEST INSTRUMENT USED ........................ 11 5.1 Test Facility ........................................................... 11 5.2 Test Instrument Used .................................................. 11 6. CONDUCTED EMISSIONS ............................................. 13 6.1 Block Diagram Of Test Setup ........................................... 13 6.2 Limit ................................................................. 13 6.3 Test procedure ........................................................ 13 6.4 Test Result ........................................................... 15 7. RADIATED EMISSIONS ............................................... 17 7.1 Block Diagram Of Test Setup ........................................... 17 7.2 Limit ................................................................. 18 7.3 Test procedure ........................................................ 18 7.4 Test Result ........................................................... 20 7.5 RADIATED BAND EMISSION MEASUREMENT AND RESTRICTED BANDS OF OPERATION ........................................................... 24 8. CONDUCTED EMISSION .............................................. 27 8.1 Block Diagram Of Test Setup ........................................... 27 8.2 Limit ................................................................. 27 8.3 Test procedure ........................................................ 27 8.4 Test Result ........................................................... 28 9. 20 DB BANDWIDTH .................................................. 37 9.1 Block Diagram Of Test Setup ........................................... 37 9.2 Limit ................................................................. 37 9.3 Test procedure ........................................................ 37 9.4 Test Result ........................................................... 38 10. MAXIMUM PEAK OUTPUT POWER .................................... 43 10.1 Block Diagram Of Test Setup .......................................... 43 10.2 Limit ................................................................ 43 10.3 Test procedure ....................................................... 43 10.4 Test Result .......................................................... 44 11. HOPPING CHANNEL SEPARATION .................................... 49 11.1 Block Diagram Of Test Setup .......................................... 49 Te s t Report Tel: 400-788-9558 Web: https://www.bctc-lab.com BCTC/RF-EMC-0 07 Ver.：A.0 Page 3 of 70 Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2002000181E 11.2 Limit ................................................................ 49 11.3 Test procedure ....................................................... 49 11.4 Test Result .......................................................... 50 12. NUMBER OF HOPPING FREQUENCY .................................. 55 12.1 Block Diagram Of Test Setup .......................................... 55 12.2 Limit ................................................................ 55 12.3 Test procedure ..................................................…

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ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2002000181E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page68of70 16.EUTTESTSETUPPHOTOGRAPHS ConductedMeasurementPhotos ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2002000181E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page69of70 RadiatedMeasurementPhotos ShenzhenBCTCTestingCo.,Ltd.ReportNo.:BCTC2002000181E TestReportTel:400-788-9558Web:https://www.bctc-lab.comBCTC/RF-EMC-007Ver.：A.0Page70of70 ※※※※※ENDOFREPORT※※※※※