2APN5-DUALRBSSmart Roller Shutter Switch

Sh enzhen Sonoff Technologies Co., Ltd. 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－ Date: 2024-09-06 Federal Communications Commission Authorization and Evaluation Division 7 435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d) (5) (i) Filing SUBJECT: FCC Application for FCC ID: 2APN5-DUALRBS To Whom It May Concern: Shenzhen Son off Technologies Co., Ltd. certifies that the equipment for which authorization is sought is not "covered" equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, ．俨 分l -i Signatory [Stan Li, Manager]

Date: 2024-09-06 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d) (5) (ii) Filing SUBJECT: FCC Application for FCC ID: 2APN5-DUALRBS To Whom It May Concern: Shenzhen Sonoff Technologies Co., Ltd. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List (as a specifically named entity or any of its subsidiaries or affiliates) as an entity producing "covered" equipment. Sincerely, Signatory 女记扫 [Stan Li, Manager] Shenzhen Sonoff Technologies Co., Ltd. 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China －－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

Shenzhen Son off Technologies Co., Ltd . 3F & 6F, Bldg A, No. 663, Bu long Rd, Shenzhen, Guangdong, China ------------------------------------------------------------------------------------------------------------------------ Date: 2024-09-06 Federal Communications Commission Authorization and Evaluation Division 7 435 Oakland Mills Road Columbia, MD 21046 USA FCC ID: 2APN5-DUALRBS Applicant FRN: 0027467786 US Agent -Attestation Statement/ Part 2.911 (d)(?) Shenzhen Sonoff Technologies Co., Ltd. certifies that, as of 2024-09-06, we have designated SONOFF TECHNOLOGY LLC to accept service of process on our behalf for FCC ID: 2APN5-DUALRBS. Shenzhen Sonoff Technologies Co., Ltd., accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. SONOFF TECHNOLOGY LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of Shenzhen Sonoff Technologies Co., Ltd. for FCC ID: 2APN5-DUALRBS. Designated Agent Information: Company Name: SONOFF TECHNOLOGY LLC U.S. Agent FRN: 0035597152 Address: 14777 NE 40th St, Suite 201 Bellevue, WA 98007 United States Contact Person: KEBIN ZHANG Phone: (425) 623-8360 Email: [email protected] Sincerely, Company: Shenzhen Sonoff Technologies Co.,Designated Agent: SONOFF TECHNOLOGY Ltd. LLC Company Representative: Stan Li Designated Agent Representative: KEBIN Signature: 知讥凶 ZHANG Signature: 局7),,,,7,,勺

S henzhen Son off Technolo g ies Co. , Ltd. 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China ----------------- ----------------------------------------------------------------------------------------------------------- Date: 2024-09-06 FEDERAL COMMUNICATIONS COMMISSION AUTHORIZATION AND EVALUATION DIVISION 7435 OAKLAND MILLS ROAD COLUMBIA, MD 21046 SUBJECT: FCC Application for FCC ID: 2APN5-DUALRBS Confidentiality Request To whom it may concern, Pursuant to the provisions of the Commission's rules Title 47 Sections§0.457 and§0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. 因BlockDiagram口Tune-UpInformation 因OperationalDescription口SecurityInformation 冈Schematics口SoftwareDefined Radio (SDR) Information 口PartsList The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosu「e of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. In additional to above mentioned documents, in o「der to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in T仆le47 CFR§2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); 口ExternalPhotos口Test Setup Photos 口InternalPhotos口UserManual 口 For 45 days, pursuant to Public Notice DA 04-1705. or 口 For 180 days pursuant to KDB 726920 D01. 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. Sincerely, 女讥区 Signatory [Stan Li, Manager]

Shenzhen Son off T echnologies Co., Ltd. 3F & 6F, Bldg A, No. 663, Bulong Rd, Shenzhen, Guangdong, China ----------------- ----------------------------------------------------------------------------------------------------------- Date: 2024-09-06 FEDERAL COMMUNICATIONS COMMISSION AUTHORIZATION AND EVALUATION DIVISION 7435 OAKLAND MILLS ROAD COLUMBIA, MD 21046 SUBJECT: FCC Application for FCC ID: 2APN5-DUALRBS POWER OF ATTORNEY To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So 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, Shenzhen Sonoff Technologies Co., Ltd. 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. Sincerely, Signatory 如归 [St a n Li, Manager]

Reference No.: WTX24X07173679W001/002 Page 2 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS Model: DUAL-RBS EUT View 1 EUT View 2 Reference No.: WTX24X07173679W001/002 Page 3 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX24X07173679W001/002 Page 4 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6 Reference No.: WTX24X07173679W001/002 Page 5 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Model: DUAL-RBS-MS EUT View 1 EUT View 2

Reference No.: WTX24X07173679W001/002 Page 6 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX24X07173679W001/002 Page 7 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6

ReferenceNo.:WTX24X07173679W001/002Page1of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT1-PRODUCTLABELING ProposedFCCIDLabelFormat Specifications:Thelabelshallbesecurelyaffixedtoapermanentlyattachedpartofthedevice,inalocation whereitisvisibleoreasilyaccessibletotheuser,andshallnotbereadilydetachable.Thelabelshallbe sufficientlydurabletoremainfullylegibleandintactonthedeviceinallnormalconditionsofusethroughout thedevice’sexpectedlifetime. ProposedLabelLocationonEUT FCCIDLabel Location

Reference No.: WTX24X07173679W001/002 Page 8 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX24X07173679W001/002 Page 9 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Solder Board-Component View 3 Reference No.: WTX24X07173679W001/002 Page 10 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 4 Antenna View BT/WIFIAnt.

1.RFExposureRequirements 1.1GeneralInformation ClientInformation Applicant:ShenzhenSonoffTechnologiesCo.,Ltd. Addressofapplicant:3F&6F,BldgA,No.663,BulongRd,Shenzhen,Guangdong,China Manufacturer:ShenzhenSonoffTechnologiesCo.,Ltd. Addressofmanufacturer:3F&6F,BldgA,No.663,BulongRd,Shenzhen,Guangdong,China GeneralDescriptionofEUT: ProductName:SmartRollerShutterSwitch TradeNameSONOFF ModelNo.:DUAL-RBS AddingModel(s):DUAL-RBS-MS RatedVoltage:AC120V PowerAdapter:/ FCCID:2APN5-DUALRBS EquipmentType:Mobiledevice TechnicalCharacteristicsofEUT: Bluetooth BluetoothVersion:V4.2(BLEmode) FrequencyRange:2402-2480MHz RFOutputPower:2.942dBm(Conducted) DataRate:1Mbps Modulation:GFSK QuantityofChannels:40 ChannelSeparation:2MHz TypeofAntenna:CeramicAntenna AntennaGain:0.77dBi Wi-Fi SupportStandards:802.11b,802.11g,802.11n FrequencyRange: 2412-2462MHzfor802.11b/g/n(HT20) 2422-2452MHzfor802.11n(HT40) RFOutputPower:16.43dBm(Conducted) TypeofModulation:CCK,OFDM,QPSK,BPSK,16QAM,64QAM QuantityofChannels:11for802.11b/g/n(HT20);7for802.11n(HT40) ChannelSeparation:5MHz TypeofAntenna:CeramicAntenna AntennaGain:0.77dBi 1.2RFExposureExemption Accordingto§1.1307(b)(3)andKDB447498D04InterimGeneralRFExposureGuidancev01,system operatingundertheprovisionsofthissectionshallbeoperatinginamannerthatthepublicisnotexposedto radiofrequencyenergylevelinexcesslimitformaximumpermissibleexposure. OptionA:FCCRulePart1.1307(b)(3)(i)(A):Theavailablemaximumtime-averagedpowerisnomorethan 1mW,regardlessofseparationdistance. OptionB:FCCRulePart1.1307(b)(3)(i)(B):Theavailablemaximumtime-averagedpoweroreffective radiatedpower(ERP),whicheverisgreater,islessthanorequaltothethresholdP th (mW)describedinthe followingformula.P th isgivenby: OptionC:FCCRulePart1.1307(b)(3)(i)(C):Theminimumseparationdistance(Rinmeters)fromthebodyof anearbypersonforthefrequency(finMHz)atwhichthesourceoperates,theERP(watts)isnomorethanthe calculatedvalueprescribedforthatfrequency.Rmustbeatleastλ/2π,whereλisthefree-spaceoperating wavelengthinmeters. SingleRFSourcesSubjecttoRoutineEnvironmentalEvaluation RFSourcefrequency(MHz)ThresholdERP(watts) 0.3-1.341,920R 2 1.34-303,450R 2 /f 2 30-3003.83R 2 300-1,5000.0128R 2 f 1,500-100,00019.2R 2 ForMultipleRFsources:FCCRulePart1.1307(b)(3)(ii): (A)Theavailablemaximumtime-averagedpowerofeachsourceisnomorethan1mWandthereisa separationdistanceoftwocentimetersbetweenanyportionofaradiatingstructureoperatingandthe nearestportionofanyotherradiatingstructureinthesamedevice,exceptifthesumofmultiplesourcesis lessthan1mWduringthetime-averagingperiod,inwhichcasetheymaybetreatedasasinglesource (separationisnotrequired). (B)InthecaseoffixedRFsourcesoperatinginthesametime-averagingperiod,orofmultiplemobileor portableRFsourceswithinadeviceoperatinginthesametimeaveragingperiod,ifthesumofthe fractionalcontributionstotheapplicablethresholdsislessthanorequalto1asindicatedinthefollowing equation. 1.3CalculatedResult Radio Access Technology Prediction Frequency Output Power Antenna Gain Duty Cycle Tune-Up Time-AveragedPower ERP (MHz)(dBm)(dBi)(%)(dBm)(dBm) Bluetooth24022.9420.77100 3.001.62 Wi-Fi241216.430.77100 17.0015.62 Frequency Option Min.DistanceMax.PowerExposureLimit Ratio Result (MHz)(cm)(dBm)(mW)(mW)Pass/Fail 2402C20.001.621.45768.000.01Pass 2412C20.0015.6236.48768.000.05Pass Note:1.Time-AveragedPower=OutputPower*DutyCycle;ERP=Time-AveragedPower+Antenna gain-2.15dB 2.OptionA,BandCrefersasclause1.2. 3.ForoptionB,Max(time-averagedpower,effectiveradiatedpower(ERP))convertstoMax.Power.For optionC,ERPconvertstoMax.Power; 4.ForoptionB,P th (mW)convertstoExposureLimit(mW);ForoptionC,ERP(W)convertstoExposure Limit(mW). 5.Ratio=Tune-UpERP(mW)/ExposureLimit(mW) ModeforSimultaneousMulti-bandTransmission: RadioAccess Technology Ratio1Ratio2 Simultaneous Ratio Limit Result Pass/Fail ------------ Note:BTandWi-Fican’ttransmitatthesametime. Result:Pass

ANTENNA SPECIFICATION Product description:2.4G Ceramic Antenna Uni Link’s part number: RFANT3216120A5T Issue Date:2024.06.20 Note:2400-2500MHZ Manufacturer: WALSIN TECHNOLOGY Co., Ltd Address:Walsin Technology Corporation 566-1, Ko-Shi Road , Yang-Mei, Tao-Yuan, 32668, Taiwan 1 、（ PRODUCT TECHNICAL SPECIFICATION ） Electrical Specifications Frequency Range (MHz)2400-2500 Input Impendence (Ω)50 V.S.W.R≤2 Gain (dBi)0.77 Polarization TypeLinear Power Capacity (w)5 Mechanical Specifications Antenna Length (mm)3.20mm RadiatorCuprum Connect TypeSoldering Working Temp( °C) -1 0~40 Storage Temperature(°C)-40~85 antenna size3.2x1.6mm Weight (g)3 2 、 PRODUCT PICTURE 3 、 PRODUCT SPECIFICATION CHART 4 、 Image of antenna field shape test

WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 38 TESTREPORT ReferenceNo.......................:WTX24X07173679W002 FCCID....................................:2APN5-DUALRBS Applicant...............................:ShenzhenSonoffTechnologiesCo.,Ltd. Address.................................:3F&6F,BldgA,No.663,BulongRd,Shenzhen,Guangdong,China Manufacturer........................:ThesameasApplicant Address.................................:ThesameasApplicant ProductName......................:SmartRollerShutterSwitch ModelNo...............................:DUAL-RBS Standards..............................:FCCPart15.247 DateofReceiptsample .....: 2024-07-24 DateofTest...........................:2024-07-24to2024-08-07 DateofIssue ........................: 2024-08-07 TestReportFormNo.......... : WTX_Part15_247W TestResult............................:Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced,exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithout specificstampoftestinstituteandthesignaturesofapprover. PreparedBy: WaltekTestingGroup(Shenzhen)Co.,Ltd. Address:1/F.,Room101,Building1,HongweiIndustrialPark,Liuxian2ndRoad, Block70Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+86-755-33663308Fax.:+86-755-33663309Email:[email protected] Testedby:Approvedby: DashanChenSilinChen ReferenceNo.:WTX24X07173679W002 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 38 TABLEOFCONTENTS 1.GENERALINFORMATION.....................................................................................................................................4 1.1PRODUCTDESCRIPTIONFOREQUIPMENTUNDERTEST(EUT)........................................................................4 1.2TESTSTANDARDS.................................................................................................................................................5 1.3TESTMETHODOLOGY...........................................................................................................................................5 1.4TESTFACILITY.......................................................................................................................................................5 1.5EUTSETUPANDTESTMODE..............................................................................................................................6 1.6MEASUREMENTUNCERTAINTY.............................................................................................................................7 1.7TESTEQUIPMENTLISTANDDETAILS..................................................................................................................8 2.SUMMARYOFTESTRESULTS.........................................................................................................................11 3.ANTENNAREQUIREMENT.................................................................................................................................12 3.1STANDARDAPPLICABLE......................................................................................................................................12 3.2EVALUATIONINFORMATION................................................................................................................................12 4.POWERSPECTRALDENSITY...........................................................................................................................13 4.1STANDARDAPPLICABLE......................................................................................................................................13 4.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................13 4.3TESTPROCEDURE..............................................................................................................................................13 4.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................13 5.DTSBANDWIDTH..................................................................................................................................................14 5.1STANDARDAPPLICABLE......................................................................................................................................14 5.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................14 5.3TESTPROCEDURE..............................................................................................................................................14 5.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................14 6.RFOUTPUTPOWER............................................................................................................................................15 6.1STANDARDAPPLICABLE......................................................................................................................................15 6.2TESTSETUPBLOCKDIAGRAM...........................................................................................................................15 6.3TESTPROCEDURE..............................................................................................................................................15 6.4SUMMARYOFTESTRESULTS/PLOTS................................................................................................................15 7.FIELDSTRENGTHOFSPURIOUSEMISSIONS.............................................................................................16 7.1STANDARDAPPLICABLE......................................................................................................................................16 7.2TESTPROCEDURE............................................…

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WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 1 of 59 TESTREPORT ReferenceNo.......................:WTX24X07173679W001 FCCID....................................:2APN5-DUALRBS Applicant...............................:ShenzhenSonoffTechnologiesCo.,Ltd. Address.................................:3F&6F,BldgA,No.663,BulongRd,Shenzhen,Guangdong,China Manufacturer........................:ThesameasApplicant Address.................................:ThesameasApplicant ProductName......................:SmartRollerShutterSwitch ModelNo... ............................: DUAL-RBS Standards..............................:FCCPart15.247 DateofReceiptsample.....:2024-07-24 DateofTest ...........................: 2024-07-24to2024-08-07 DateofIssue........................:2024-08-07 TestReportFormNo. ......... : WTX_Part15_247W TestResult ............................: Pass Remarks: Theresultsshowninthistestreportreferonlytothesample(s)tested,thistestreportcannotbe reproduced,exceptinfull,withoutpriorwrittenpermissionofthecompany.Thereportwouldbeinvalidwithout specificstampoftestinstituteandthesignaturesofapprover. PreparedBy: WaltekTestingGroup(Shenzhen)Co.,Ltd. Address:1/F.,Room101,Building1,HongweiIndustrialPark,Liuxian2ndRoad, Block70Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+86-755-33663308Fax.:+86-755-33663309Email:[email protected] Testedby:Approvedby: DashanChenSilinChen ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 2 of 59 TABLEOFCONTENTS 1.GENERALINFORMATION........................................................................................................................................4 1.1PRODUCTDESCRIPTIONFOREQUIPMENTUNDERTEST(EUT)............................................................................4 1.2TESTSTANDARDS.....................................................................................................................................................5 1.3TESTMETHODOLOGY...............................................................................................................................................5 1.4TESTFACILITY..........................................................................................................................................................5 1.5EUTSETUPANDTESTMODE.................................................................................................................................6 1.6MEASUREMENTUNCERTAINTY.................................................................................................................................7 1.7TESTEQUIPMENTLISTANDDETAILS......................................................................................................................8 2.SUMMARYOFTESTRESULTS.............................................................................................................................11 3.ANTENNAREQUIREMENT.....................................................................................................................................12 3.1STANDARDAPPLICABLE.........................................................................................................................................12 3.2EVALUATIONINFORMATION....................................................................................................................................12 4.POWERSPECTRALDENSITY...............................................................................................................................13 4.1STANDARDAPPLICABLE.........................................................................................................................................13 4.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................13 4.3TESTPROCEDURE..................................................................................................................................................13 4.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................13 5.DTSBANDWIDTH......................................................................................................................................................14 5.1STANDARDAPPLICABLE.........................................................................................................................................14 5.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................14 5.3TESTPROCEDURE..................................................................................................................................................14 5.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................14 6.RFOUTPUTPOWER................................................................................................................................................15 6.1STANDARDAPPLICABLE.........................................................................................................................................15 6.2TESTSETUPBLOCKDIAGRAM...............................................................................................................................15 6.3TESTPROCEDURE..................................................................................................................................................15 6.4SUMMARYOFTESTRESULTS/PLOTS....................................................................................................................15 7.FIELDSTRENGTHOFSPURIOUSEMISSIONS.................................................................................................16 7.1STANDARDAPPLICABLE.........................................................................................…

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ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 51 of 59 APPENDIXD ConductedOutofBandEmissions 802.11b-Low 802.11b-Middle ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 52 of 59 802.11b-High ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 53 of 59 802.11g-Low 802.11g-Middle ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 54 of 59 802.11g-High ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 55 of 59 802.11n-HT20-Low 802.11n-HT20-Middle ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 56 of 59 802.11n-HT20-High ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 57 of 59 802.11n-HT40-Low 802.11n-HT40-Middle ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 58 of 59 802.11n-HT40-High ReferenceNo.:WTX24X07173679W001 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cnPage 59 of 59 APPENDIXPHOTOGRAPHS Pleasereferto“ANNEX” *****ENDOFREPORT*****

ReferenceNo.:WTX24X07173679W001/002Page11of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn EXHIBIT4-TESTSETUPPHOTOGRAPHS ConductedEmissionTest Setup RadiationEmissionTest Setup(Below30MHz) ReferenceNo.:WTX24X07173679W001/002Page12of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn RadiationEmissionTest Setup(30MHzto1GHz) RadiationEmissionTest Setup(1GHzto18GHz) ReferenceNo.:WTX24X07173679W001/002Page13of13 WaltekTestingGroup(Shenzhen)Co.,Ltd. Http://www.waltek.com.cn RadiationEmissionTest Setup(Above18GHz) *****ENDOFREPORT*****