2AKI8-MZX758LTRUE EVO GLOW TRULY WIRELESS EARPHONE

Rev 11/20/07 TOPWAY EM ENTERPRISE LTD. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AKI8-MZX758L Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit TypeFile Name Block Diagram Schematics Operational Description Block SCH Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, We also requesting the commission to grant short-term confidentiality request on the following attachments until180 days after the Grant Date of Equipment Authorizations. Exhibit TypeFile Name ManualUser manual Sincerely, ZHUANG LIANG 2020-7-08

TOPWAY EM ENTERPRISE LTD. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2020/7/08 SUBJECT: FCC Application for (FCC ID: 2AKI8-MZX758L) To Whom It May Concern: We, the undersigned, hereby authorize EMTEK (DONGGUAN) CO., LTD. at Sam Lv on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK (DONGGUAN) CO., LTD.on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, Sincerely, ZHUANG LIANG 2020-7-08

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RF EXPOSURE EVALUATION EUT Specification EUTTRUE EVO GLOW TRULY WIRELESS EARPHONE Model Number MZX758L FCC ID2AKI8-MZX758L Antenna gain (Max)0dBi Operation Frequency2402-2480MHz Input RatingDC 3.7V from battery Classification Per Stipulated Test Standard §15.247(i), §2.1093 Kind of Device: Bluetooth Ver.5.0 ModulationBT: GFSK, π/4-DQPSK, 8DPSK BLE:GFSK Max. output powerBT: 1.95dBm(0.001567W) BLE:0.91dBm(0.001233) Test Requirement: According to §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. OneantennaisavailablefortheEUT.Theminimumseparationdistanceis 5mm. BTDSS: Transmit Frequency (MHz) Mode Measure dPower (dBm) Tune upPower (dBm) Maxtuneup power(dBm) Calculation Result 1-g SAR 2.402GFSK-0.850±110.39022633 2.441GFSK-1.26-1±100.31247403 2.480GFSK-1.95-1±100.31496033 2.402 Π/4-DQ PSK -1.49-1±100.30996773 2.441 Π/4-DQ PSK 0.450±110.39338153 2.480 Π/4-DQ PSK 0.530±110.39651153 2.4028DPSK-3.48-3±1-20.19557643 2.4418DPSK-1.52-1±100.31247403 2.4808DPSK-1.26-1±100.31496033 BLE Transmit Frequency (MHz) Mode Measure dPower (dBm) Tune upPower (dBm) Maxtuneup power(dBm) Calculation Result 1-g SAR 2.402GFSK-4.06-4±1-30.15535193 2.440GFSK-1.01-1±100.31247403 2.480GFSK0.911±120.49917853 AccordingtoKDB447498,nostand-alonerequiredforBTantenna,andno simultaneousSARmeasurementisrequired. Signature: SamLv Date:2020-07-8

ReportNo.ES200423063W2Page 1 of 57 Ver.1.0 $二维码$ TESTREPORT ProductName ： TRUEEVOGLOWTRULYWIRELESS EARPHONE ModelNumber ： MZX758L FCCID ： 2AKI8-MZX758L Preparedfor:TOPWAYEMENTERPRISELIMITED Address:8FBLOCKBBUILDING6BAONENGS&TPARKLONG HUASHENZHENGDChina Preparedby:EMTEK(SHENZHEN)CO.,LTD. Address:Building69,MajialongIndustryZone,NanshanDistrict, Shenzhen,Guangdong,China Tel:(0755)26954280 Fax:(0755)26954282 ReportNumber:ES200423063W2 Date(s)ofTests:April23,2020toMay20,2020 Dateofissue:May20,2020 ReportNo.ES200423063W2Page 2 of 57 Ver.1.0 VERIFICATIONOFCOMPLIANCE Applicant:TOPWAYEMENTERPRISELIMITED 8FBLOCKBBUILDING6BAONENGS&TPARKLONGHUA SHENZHENGDChina Manufacturer:SHENZHENJIAHUALIDIANZIYOUXIANGONGSI NO101,201,BUILDINGE,NEWINDUSTRIALZONE,SHENZHU ROAD,LIUYUESHENKENGVILLAGE,HENGGANG,DISTRICT, SHENZHEN,CHINA. ProductDescription:TRUEEVOGLOWTRULYWIRELESSEARPHONE TradeMark:AltecLansing ModelNumber:MZX758L Weherebycertifythat: TheaboveequipmentwastestedbyEMTEK(SHENZHEN)CO.,LTD.Thetestdata,data evaluation,testprocedures,andequipmentconfigurationsshowninthisreportweremade inaccordancewiththeproceduresgiveninANSIC63.10-2013andtheenergyemittedby thesampleEUTtestedasdescribedinthisreportisincompliancewithconductedand radiatedemissionlimitsofFCCRulesPart15.247(2018). DateofTest: April23,2020toMay20,2020 Preparedby: LorenLuo/Editor Reviewer: TimDong/Supervisor Approved&AuthorizedSigner: LisaWang/Manager ReportNo.ES200423063W2Page 3 of 57 Ver.1.0 ModifiedInformation VersionSummaryRevisionDateReportNo. Ver.1.0OriginalReport/ES200423063W2 ReportNo.ES200423063W2Page 4 of 57 Ver.1.0 TableofContents TESTREPORT......................................................................................................................................1 1.GENERALINFORMATION...................................................................................................6 1.1PRODUCTDESCRIPTION .......................................................................................................................... 6 1.2TESTMETHODOLOGY .............................................................................................................................. 6 2.TESTFACILITY.......................................................................................................................7 3.DESCRIPTIONOFTESTMODES.......................................................................................8 4.SUMMARYOFTESTRESULTS........................................................................................10 6DBBANDWIDTHMEASUREMENT..................................................................................10 5.TESTSYSTEMUNCERTAINTY.........................................................................................11 6.CONDUCTEDEMISSIONSTEST......................................................................................12 6.1MEASUREMENTPROCEDURE:...............................................................................................................12 6.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION) ..................................................................... 12 6.3MEASUREMENTEQUIPMENTUSED: ..................................................................................................... 12 6.4CONDUCTEDEMISSIONLIMIT................................................................................................................12 6.5MEASUREMENTRESULT: ...................................................................................................................... 13 7.RADIATEDEMISSIONTEST.............................................................................................14 7.1MEASUREMENTPROCEDURE ................................................................................................................ 14 7.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).....................................................................16 7.3MEASUREMENTEQUIPMENTUSED: ..................................................................................................... 17 7.4RADIATEDEMISSIONLIMIT ..................................................................................................................... 18 7.5MEASUREMENTRESULT........................................................................................................................19 7.6RADIATEDMEASUREMENTPHOTOS: .................................................................................................... 25 8.6DBBANDWIDTHMEASUREMENT................................................................................26 8.1MEASUREMENTPROCEDURE ................................................................................................................ 26 8.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION).....................................................................26 8.3MEASUREMENTEQUIPMENTUSED: ...................................................................................................... 26 8.4LIMIT ....................................................................................................................................................... 26 8.5MEASUREMENTRESULTS:....................................................................................................................26 9.MAXIMUMPEAKOUTPUTPOWERTEST......................................................................29 9.1MEASUREMENTPROCEDURE ................................................................................................................ 29 9.2TESTSET-UP(BLOCKDIAGRAMOFCONFIGURATION) ..................................................................... 29 9.3MEASUREMENTEQUIPMENTUSED:......................................................................................................29 9.4PEAKPOWEROUTPUTLIMIT .................................................................................................................. 29 9.5MEASUREMENTRESULTS: ...............................................................................…

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FCC ID: 2AKI8-MZX758L