2A9CN-SMR1Aristos Home Doorbell Push Button

Shenzhen ZTime Technology Co., Ltd. 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: Shenzhen ZTime Technology Co., Ltd. Address: No.2107,Building2, Foresea Life Center, Shenzhen, China Product Name: Aristos Home Doorbell Push Button FCC ID: 2A9CN-SMR1 Model(s): ASMR003 2.911(d)(5)(i) Equipment Type We, [Shenzhen ZTime Technology Co., Ltd.] (“the applicant”) certify that the equipment for which authorization is sought through certification is not: • Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules. • Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Name: Hui Gao Date: 2023.02.14 Title and Company name: Manager/ Shenzhen ZTime Technology Co., Ltd. NOTE 1 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen ZTime Technology Co., Ltd. 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: Shenzhen ZTime Technology Co., Ltd. Address: No.2107,Building2, Foresea Life Center, Shenzhen, China Product Name: Aristos Home Doorbell Push Button FCC ID: 2A9CN-SMR1 Model(s): ASMR003 2.911(d)(5)(ii) Applicant filing We, [Shenzhen ZTime Technology Co., Ltd.] (“the applicant”) certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 , established pursuant to § 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name: Hui Gao Date: 2023.02.14 Title and Company name: Manager/ Shenzhen ZTime Technology Co., Ltd. NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List ”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

Shenzhen ZTime Technology Co., Ltd. U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: 02-16-2023 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2A9CN-SMR1 Shenzhen ZTime Technology Co., Ltd. (“the applicant”) certifies that, as of the date of the filing of the application, THREE STONES MEDIA LLC (“ the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for 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. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. THREE STONES MEDIA LLC ("the agent) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name: THREE STONES MEDIA LLC FRN: 0033401761 GC: 2A99E Address: 1200 Broadway St. APT 329, Los Angeles, CA90015 Signature: Contact Person: Sijie Zhang Tel: +1 267 909 3692 Email: [email protected] Applicant Company Name: Shenzhen ZTime Technology Co., Ltd. Address: No.2107,Building2, Foresea Life Center, Shenzhen, China Signature: Contact Person: Hui Gao Tel: +86-18676678008 Email: [email protected]

Shenzhen ZTime Technology Co., Ltd. Agent Authorization Company: Shenzhen ZTime Technology Co., Ltd. Address: No.2107,Building2, Foresea Life Center, Shenzhen, China Product Name: Aristos Home Doorbell Push Button Model Number(s): ASMR003 Product Description: Aristos Home Doorbell Push Button We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2023.02.14 Name: Hui Gao Title: Manager Company: Shenzhen ZTime Technology Co., Ltd.

Shenzhen ZTime Technology Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: February 14, 2023 Subject; Request for Confidentiality FCC ID: 2A9CN-SMR1 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. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 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); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Hui Gao Title: Manager

EUT PHOTO(External Photos) FCC ID: 2A9CN-SMR1

Page 1 of 1 Label and Information FCC Label Sample FCC Label Specifications Text is Black in color and is justified. Labels are printed in indelible ink on permanent adhesive backing or silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Where the EUT is constructed in two or more sections connected by wires and marketed together, the above statement is required to be affixed only to the main control unit. When the EUT is so small or for such use that it is not practicable to place the statement on it, the above information shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or, alternatively, shall be placed on the container in which the device is marketed. FCC Label Location

EUT PHOTO(Internal Photos) FCC ID: 2A9CN-SMR1 ANT

Report No: SSP22100017A Antenna Test Report Page 1 of 4 Antenna Test Report Test Standard: IEEE 149-1979 Manufacturer: Shenzhen ZTime Technology Co., Ltd. Product Name: 433.92MHz Antenna Model: ASMR003 Report No.: SSP22100017A Tested Date: 2022-11-23 Issued Date: 2022-11-25 Tested By: William Liu (Engineer) Approved By: Lahm Peng (Manager) Prepared By: Shenzhen ZRLK Testing Technology Co., Ltd. 1F, No. 35 Building, Changxing Technology Industrial Park, Yutang Street, Guangming New District, Shenzhen City, Guangdong Province, China Tel.: +86-755-33019599 Fax.: +86-755-33019599 Website: www.zrlklab.com Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen ZRLK Testing Technology Co., Ltd. Report No: SSP22100017A Antenna Test Report Page 2 of 4 1. General Information 1.1 Product Information Manufacturer Manufacturer: Shenzhen ZTime Technology Co., Ltd. Address of Manufacturer: No.2107,Building2, Foresea Life Center, Shenzhen, China General Description of Antenna Product Name: 433.92GHz Antenna Model No.: ASMR003 Frequency Range: 433.92MHz Type of Antenna: Integral Antenna Antenna Gain: 0dBi (Max.) Impedance: 50 ohm Antenna View ( 20mm*7mm) 1.2 Test Methodology All measurements contained in this report were conducted with standards IEEE 149-1979 for IEEE Standard Test Procedures for Antennas. 1.3 Test Facilities Te s ting Lab: Shenzhen ZRLK Testing Technology Co., Ltd. All measurement facilities used to collect the measurement data are located at 1F, No. 35 Building, Changxing Technology Industrial Park, Yutang Street, Guangming New District, Shenzhen City, Guangdong Province, China Report No: SSP22100017A Antenna Test Report Page 3 of 4 2. O TA Te s t 2.1 Gain Frequency Peak Gain (dBi) Polarity 433.92MHz 0 Horizontal 433.92MHz -0.26 Vertical 2.2 Radiation Pattern View

ProjectNo.:ZKT230203L0465E Page 1 of 29 FCCTESTREPORT FCCID:2A9CN-SMR1 ReportNumber...................................:ZKT230203L0465E DateofTest ....................................................... : January.4,2023toMarch1,2023 Dateofissue ......................................... : March2,2023 Totalnumberofpages..........................29 TestResult .......................................... : PASS TestingLaboratory. ........................... : ShenzhenZKTTechnologyCo.,Ltd. Address ............................................... : 1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrial Avenue,FuhaiStreet,Bao'anDistrict,Shenzhen,China Applicant'sname ............................. : ShenzhenZTimeTechnologyCo.,Ltd. Address ............................................... : No.2107,Building2,ForeseaLifeCenter,Shenzhen,China Manufacturer'sname ...................... : ShenzhenZTimeTechnologyCo.,Ltd. Address...............................................: No.2107,Building2,ForeseaLifeCenter,Shenzhen,China Testspecification: Standard................................................: FCCCFRTitle47Part15SubpartCSection15.231 ANSIC63.10:2013 Testprocedure ..................................... : / Non-standardtestmethod................:N/A TestReportFormNo........................: TRF-EL-108_V0 TestReportForm(s)Originator.....: ZKTTesting MasterTRF........................................: Dated:2020-01-06 ThisdevicedescribedabovehasbeentestedbyZKT,andthetestresultsshowthattheequipmentunder test(EUT)isincompliancewiththeFCCrequirements.Anditisapplicableonlytothetestedsample identifiedinthereport. Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofZKT,thisdocumentmay bealteredorrevisedbyZKT,personalonly,andshallbenotedintherevisionofthedocument. Productname.....................................:AristosHomeDoorbellPushButton Trademark ........................................... : AristosHome Model/Typereference.........................: ASMR003 Ratings..................................................:Self-mechanicalpowersupply ProjectNo.:ZKT230203L0465E Page 2 of 29 Testingprocedureandtestinglocation: TestingLaboratory.......................................:ShenzhenZKTTechnologyCo.,Ltd. Address............................................................:1/F,No.101,BuildingB,No.6,TangweiCommunity IndustrialAvenue,FuhaiStreet,Bao'anDistrict, Shenzhen,China AlenHeTestedby(name+signature).......................: JoeLiu Reviewer(name+signature).......................: LakeXie Approved(name+signature).......................: ProjectNo.:ZKT230203L0465E Page 3 of 29 TableofContentsPage 1.VERSION5 2.SUMMARYOFTESTRESULTS6 2.1TESTFACILITY7 2.2MEASUREMENTUNCERTAINTY7 3.GENERALINFORMATION8 3.1GENERALDESCRIPTIONOFEUT8 3.2DESCRIPTIONOFTESTMODES9 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED9 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE)9 3.5EQUIPMENTSLISTFORALLTESTITEMS10 4.EMCEMISSIONTEST12 4.1CONDUCTEDEMISSIONMEASUREMENT12 4.1.1POWERLINECONDUCTEDEMISSIONLIMITS12 4.1.2TESTPROCEDURE13 4.1.3DEVIATIONFROMTESTSTANDARD13 4.1.4TESTSETUP13 4.1.5EUTOPERATINGCONDITIONS13 4.1.6TESTRESULTS13 4.2RADIATEDEMISSIONMEASUREMENT14 4.2.1RADIATEDEMISSIONLIMITS14 4.2.2TESTPROCEDURE15 4.2.3TESTSETUP16 4.2.4EUTOPERATINGCONDITIONS17 4.2.5TESTRESULTS17 5.1APPLIEDPROCEDURES/LIMIT22 5.2TESTPROCEDURE22 5.3DEVIATIONFROMSTANDARD22 5.4TESTSETUP22 5.5EUTOPERATIONCONDITIONS22 5.6TESTRESULTS23 6.CALCULATIONOFAVERAGEFACTOR24 7.DWELLTIME26 7.1APPLICABLESTANDARD26 7.2TESTPROCEDURE26 7.5EUTOPERATIONCONDITIONS26 7.6TESTRESULTS27 ProjectNo.:ZKT230203L0465E Page 4 of 29 TableofContentsPage 8.ANTENNAREQUIREMENT28 9.TESTSETUPPHOTO29 10.EUTCONSTRUCTIONALDETAILS29 ProjectNo.:ZKT230203L0465E Page 5 of 29 1.VERSION ReportNo.VersionDescriptionApproved ZKT230203L0465ERev.01InitialissueofreportMarch2,2023 ProjectNo.:ZKT230203L0465E Page 6 of 29 2.SUMMARYOFTESTRESULTS Testproceduresaccordingtothetechnicalstandards: FCCPart15(15.231),SubpartC Standard Section TestItemJudgmentRemark 15.207ConductedEmissionN/A 15.209,15.231b Fundamental&RadiatedSpuriousEmission Measurement PASS 15.231cOccupyBandwidthPASS 15.231aDwelltimePASS 15.203AntennaRequirementPASS NOTE: (1)”N/A”denotestestisnotapplicableinthisTestReport ProjectNo.:ZKT230203L0465E Page 7 of 29 2.1TESTFACILITY ShenzhenZKTTechnologyCo.,Ltd. Add.:1/F,No.101,BuildingB,No.6,TangweiCommunityIndustrialAvenue,FuhaiStreet,Bao'an District,Shenzhen,China FCCTestFirmRegistrationNumber:692225 DesignationNumber:CN1299 ICRegisteredNo.:27033 CABidentifier:CN0110 2.2MEASUREMENTUNCERTAINTY Thereporteduncertaintyofmeasurementy±U ， whereexpendeduncertaintyUisbasedonastandard uncertaintymultipliedbyacoveragefactorofk=2，providingalevelofconfidenceofapproximately95 % 。 No.ItemUncertainty 1 3mcamberRadiatedspurious emission(9KHz-30MHz) U=4.5dB 2 3mcamberRadiatedspurious emission(30MHz-1GHz) U=4.8dB 3 3mchamberRadiatedspurious emission(1GHz-6GHz) U=4.9dB 4 3mchamberRadiatedspurious emission(6GHz-40GHz) U=5.0dB 5ConducteddisturbanceU=3.2dB 6RFBandEdgeU=1.68dB 7RFpowerconductedU=1.86dB 8RFconductedSpuriousEmissionU=2.2dB 9RFOccupiedBandwidthU=1.8dB 10RFPowerSpectralDensityU=1.75dB 11humidityuncertaintyU=5.3% 12Temperatureuncertainty U=0.59 °C ProjectNo.:ZKT230203L0465E Page 8 of 29 3.GENERALINFORMATION 3.1GENERALDESCRIPTIONOFEUT Equipment AristosHomeDoorbellPushButton TradeName AristosHome ModelName ASMR003 SerialModel N/A ModelDifference N/A Hardwareversion V1.0 Softwareversion V1.0 OperationFrequency:433.92MHz ModulationType:ASK AntennaType:IntegralAntenna AntennaGain:0dBi Ratings Self-mechanicalpowersupply ProjectNo.:ZKT230203L0465E Page 9 of 29 3.2DESCRIPTIONOFTESTMODES ForAllEmission FinalTestModeDescription TransmittingmodeKeeptheEUTincontinuouslytransmittingmode Note: (1)Fully-chargedbatteryisusedduringthetest 3.3BLOCKDIGRAMSHOWINGTHECONFIGURATIONOFSYSTEMTESTED RESpuriousemissions 3.4DESCRIPTIONOFSUPPORTUNITS(CONDUCTEDMODE) TheEUThasbeentestedasanindependentunittogetherwithothernecessaryaccessoriesorsupport…

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EUT TEST PHOTO FCC ID: 2A9CN-SMR1 Radiated band emission (30MHz-1GHz): Radiated band emission (Above 1GHz):