2AYSU-ERSQD01Open-Ear Wireless Headphones

ModelDifferenceDeclaration ToWhomItMayConcern, We,Earsquared Product:Open-EarWirelessHeadphones Trademark:Earsquared ModelNumber:EarCITYC,EarCITY,EarSPORT,EarRIDE,EarSLEEP Allmodel’sthefunction,softwareandelectriccircuitarethesame,onlywitha productcolorandmodelnameddifferent.Testsamplemodel:EarCITYC. Pleasecontactmeifyouhaveanyquestion. Name:NellyMartin Date:Mar.08,2021 Title:Manager Signatureofapplicant:

DATE:2021.03.08 FederalCommunicationsCommission Authorization&EvaluationDivision 7345OaklandMillsRoad Columbia,Maryland21046 AuthoritytoActasAgent Onourbehalf,PIappointLiuZeofShenzhenUnitedTestingTechnologyCo.,Ltd./2F, AnnexBldg,JiahuangyuanTechPark,#365Baotian1Rd,TiegangCommunity,Xixiang Str,Bao'anDistrict,Shenzhen,China(NameofAgentcompanynameandaddress)toact asouragentinthepreparationofthisapplicationforequipmentcertification.Icertifythat submitteddocumentsproperlydescribethedeviceorsystemforwhichequipment certificationissought.Ialsocertifythateachunitmanufactured,importedormarketed,as definedintheFederalCommunicationsCommission’sregulationswillhaveaffixedtoita labelidenticaltothatsubmittedforapprovalwiththisapplication. Forinstanceswhereourauthorizedagentsignstheapplicationforcertificationonour behalf,Iacknowledgethatallresponsibilityforcomplyingwiththetermsandconditions forcertification,stillresideswithEarsquared180boulevardCharavines,Batiment INOLAB,VOIRON38500,France(ApplicantNameandaddress) <Signature>： Name：NellyMartin Title：Manager Company ： Earsquared

DATE:2021.02.25 EquipmentAutorisationDivision FederalCommunicationsCommission 7435OaklandMillsRoad Columbia,MD21046 FCCID:2AYSU-ERSQD01 ProductName:Open-EarWirelessHeadphones RequestforConfidentiality PursuanttoSections0.457and0.459ofthecommissionsrules,weherebyrequestthat thefollowingdocumentsbeheldconfidential: (Listherethedocumentsforwhichyouareseekingconfidentiality–forexample...)  Schematics Blockdiagram  Operationdescription Thesematerialscontaintradesecretsandproprietaryinformationandarenot customarilyreleasedtothepublic.Thepublicdisclosureofthisinformationmightbe harmfultothecompanyandprovideunjustifiedbenefitstoourcompetitors. <Signature>： Name：NellyMartin Title：Manager Company：Earsquared

Model:EarCITYC Model:EarCITYC Model:EarCITYC

FCC ID LABEL: Label Location: FCC ID: 2AYSU-ERSQD01 Product name: Open-Ear Wireless Headphones Model No.: EarCITY C 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 (2)This device must accept any interference received, including interference that may cause undesired operation. Long:3cm Width:2cm

Model:EarCITYC Model:EarCITYC Model:EarCITYC Model:EarCITYC Antenna :

RFExposureevaluation Accordingto447498D01GeneralRFExposureGuidancev05 The1-gand10-gSARtestexclusionthresholdsfor100MHzto6GHzat testseparationdistances≤50mmaredeterminedby: [(max.powerofchannel,includingtune-uptolerance,mW)/(min.test separationdistance,mm)]·[√f(GHz)]≤3.0for1-gSARand≤7.5for 10-gextremitySAR,where f(GHz)istheRFchanneltransmitfrequencyinGHz PoweranddistanceareroundedtothenearestmWandmmbefore calculation Theresultisroundedtoonedecimalplaceforcomparison eirp=ptxgt=(EXd) 2 /30 where: pt=transmitteroutputpowerinwatts, gt=numericgainofthetransmittingantenna(unitless), E=electricfieldstrengthinV/m,---10 ((dBuV/m)/20) /10 6 d=measurementdistanceinmeters(m)---3m Sopt=(EXd) 2 /30xgt Antgain=1dBi;soAntnumericgain=1.26 Fieldstrength=75.63dBμV/m@3m SoPt={[10 (75.63/20) /10 6 x3] 2 /30x1.26}x1000mW=0.0087mW So(0.0087mW/5mm)x√2.440GHz=0.0027<3 ThenSARevaluationisnotrequired

L"i Page 1 of 32 Report No.:UNIA20122113ER-01 FCC RADIO TEST REPORT FCC ID:2A YSU-ERSQD01 Product: Open-Ear Wireless Headphones Trade Name: Earsquared Model Name: EarCITY C Serial Model: EarCITY, EarSPORT, EarRIDE, EarSLEEP Report No.: UNIA21012113ER-06 Prepared for Earsquared 180 boulevard Charavines, Batiment INOLAB, VOIRON 38500, France Prepared by Shenzhen United Testing Technology Co., Ltd. 2F, Annex Bldg, Jiahuangyuan Tech Park, #365 Baotian 1 Rd, Tiegang Community, Xixiang Str, Bao'an District, Shenzhen, China 2F, Annex Bldg, Jiahuangyuan Tech Park, #365 Baotian 1 Rd, Tiegang Community, Xixiang Str, Bao'an District, Shenzhen, China ;lilijll$"!ii:$i:IRi!!i�llii!!Uciiiitillti'lll-ffl365�li�;J!f:l�lml!f1!12!l a!\!ii: 518102 Tel: +86-755-86180996 Fax: +86-755-86180156 http:/ / www.unHab.hk I Page 22 of 32 Report No.:UNIA20122113ER-01 5 BAND EDGE 5.1 Limits FCC PART 15.249(d) Emissions radiated outside of the specified frequency bands, except for harmonics.shall be attenuated by at least 50 dB below the level of the fundamental or to the general radiated emissionlimits in §15.209, whichever is the lesser attenuation. 5.2 Test P rocedure The band edge compliance of RF radiated emission should be measured by following the guidance in ANSIC63.1 O with respect to maximizing the emission by rotating the EUT, measuring the emission while the EUT issituated in three orthogonal planes (if appropriate), adjusting the measurement antenna height and polarization etc. Set RBW to 1MHz and VBM to 3MHz to measure the peak field strength and set RBW to 1 MHz and VBW to 1 OHz PK detector to measure the average radiated field strength. 5.3 Test Result PASS Radiated Band Edge Test: GFSK Operation Mode: TX CH Low (2402MHz} Horizontal: Frequency Reading Result Factor Emission Level (MHz) (dBμV) (dB) (dB μV/ m) 2310 54.36 - 5.81 48.55 2310 I - 5.81I 2390 56.03 -5.84 50.19 2390 I -5.84 I 2400 57.49 -5.84 51.65 2400 I -5.84 I Remark: Factor = Antenna Factor + Cable Loss - Pre-amplifier. Vertical· Frequency Reading Result Factor Emission Level (MHz) (dBμV) (dB) (dB μV/ m) 2310 54.29 -5.8148.48 2310 I -5.81I 2390 56.74 -5.84 50.90 2390 I -5.84 I 2400 57.22 -5.84 51.38 2400 I -5.84 I Remark: Factor = Antenna Factor + Cable Loss - Pre-amplifier. ;;i:�11mlk.m�ili!Jtt;jtf'l!5ii;:S'il Limits Margin Detector (dBμV/m) (dB) Type 74 -25.45 PK 54 I AV 74 -23.81 PK 54 I AV 74 -22.35 PK 54 I AV Limits Margin Detector (dBμV/m) (dB) Type 74 -25.52 PK 54 I AV 74 -23.10 PK 54 I AV 74 -22.62 PK 54 I AV Shenzhen United Testing Teehnc:dogv Co.,Ltd. 2:F , AhhiH< Bh:lg, Jk.!n.1angyut111 T�lt Park , #365 Brtoti.ni 1 Rd, Tieg,mg £rimmu11lty, Xbdang Str, Bu,:fah Dfrtrkt, Shenzheh, China United Testing TechnoiogylHong Kong) Limited �#lird�:'fo>Wli:i:�wit±!K'ffi!E-�3&5��:'li.lf+i:i:lm!!l1�2� li;!i; 5181t:2 :°(;J: +$6-753-86;..80096 Fax: +36-755-86::.30156 http:/ /vnvw.\ri-!ab.hk

Model:EarCITYC Model:EarCITYC