2AR3P-SH-18PR04Smart Socket

Shenzhen Shenan Yangguang Electronics Co.,Ltd. 2023.02.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2AR3P-SH-18PR04 [Henry Pien] (Shenzhen Shenan Yangguang Electronics 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, Applicant signature: Applicant printed name: Henry Pien Shenzhen Shenan Yangguang Electronics Co.,Ltd. 2023.02.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2AR3P-SH-18PR04) [Henry Pien] (Shenzhen Shenan Yangguang Electronics Co.,Ltd.) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Applicant signature: Applicant printed name: Henry Pien

Shenzhen Shenan Yangguang Electronics Co.,Ltd. 2023.02.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Smart Socket MODEL : SH-18PR04, SH-18, SH-18A, SH-18PR01, SH-18PR02, SH-18PR03, SH-18PR05, SH-18PR06, SH-18PR07, SH-18PR08, SH-18PR09 FCC ID: 2AR3P-SH-18PR04 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Henry Pien / Manager Contact information / address: West of 4th Floor, Building 9, No. 18, Makan Road, Xili, Nanshan District, 518055, Shenzhen China

Shenzhen Shenan Yangguang Electronics Co.,Ltd. 2023.02.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Henry Pien / Manager Contact information / address: West of 4th Floor, Building 9, No. 18, Makan Road, Xili, Nanshan District, 518055, Shenzhen China

Shenzhen Shenan Yangguang Electronics Co.,Ltd. Model Difference EUT NAME: Smart Socket MODEL : SH-18PR04, SH-18, SH-18A, SH-18PR01, SH-18PR02, SH- 18PR03, SH-18PR05, SH-18PR06, SH-18PR07, SH-18PR08, SH-18PR09 FCC ID: 2AR3P-SH-18PR04 All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Henry Pien / Manager Contact information / address: West of 4th Floor, Building 9, No. 18, Makan Road, Xili, Nanshan District, 518055, Shenzhen China

External Photos

Size:10*5mm Label Location FCC ID: 2AR3P-SH-18PR04

Internal Photos Antenna

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2AR3P-SH-18PR04 Applied procedures / limit According to FCC §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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna, R=0.2m TEST RESULTS Conclusion: For the max Power Density(S)(mW/ cm2) : 0.00397＜1, the SAR testing is not required. Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW/ cm2) Result 802.11b 12±1 13 19.95 1 (0dBi) 0.00397 1 Pass

AntennaSpecification Manufacture：TUYA ProductName：CB2SAntenna AntennaType：PCB TestDate：2021.03.18 Testedby：HaigangRuan Approvedby：Licco Content 1.GeneralDescription..................................................................................1 2.TestConfigurations..................................................................................2 2.1TestEnvironment............................................................................2 2.2TestEquipment................................................................................2 2.3TestPrinciple...................................................................................2 3.TestResults...............................................................................................3 3.1S11...................................................................................................3 3.2GainandEfficiency.........................................................................4 3.3RadiationPattern.............................................................................5 4.AntennaDimensions................................................................................6 5.EUTPhoto................................................................................................6 6.TestSetupPhoto.......................................................................................7 1 1.GeneralDescription ManufacturerHangzhouTuyaInformationTechnologyCo.,Ltd Address Room701,Building3,MoreCenter,No.87GuDunRoad, Hangzhou,Zhejiang,China TestLocation Room106,Building3,LetongSciencePark,No.500, QiuyiRoad,BinjiangDistrict,Hangzhou ProductNameCB2SAntenna Productmodel CB2S AntennaType PCBAntenna TestItems Gain;Efficiency;RadiationPattern TestFrequency 2400-2500MHz TestStandard ANSI/IEEEStd149-1979 2 2.TestConfigurations 2.1TestEnvironment Temperature(°C)25 Humidity(%RH)60 AtmosphericPressure(kPa)100.5 2.2TestEquipment TestSystemTEM24Multi-probeMicrowaveChamber TestInstrumentAgilentE5071B 2.3TestPrinciple 3 3.TestResults 3.1S11 Frequency(MHz)240024502500 ReturnLoss(dB)-8.73-11.76-11.21 VSWR2.161.711.77 4 3.2GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 2400-0.9824.43 2410-0.6725.64 2420-0.3726.24 2430-0.1227.04 24400.0427.48 2450-0.4525.25 2460-0.5523.88 2470-0.6922.65 2480-0.9321.78 2490-1.1120.04 2500-2.0716.18 5 3.3RadiationPattern Phi02D Phi902D Theta902D 6 4.AntennaDimensions 5.EUTPhoto 7 6.TestSetupPhoto

No.：BCTC/RF-EMC-005 Page: 1 of 71 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2302723393E Applicant: Shenzhen Shenan Yangguang Electronics Co.,Ltd. Product Name: Smart Socket Model/Type reference: SH-18PR04 Tested Date: 2023-02-09 to 2023-02-16 Issued Date: 2023-02-17 Report No.: BCTC2302723393E No.：BCTC/RF-EMC-005 Page: 2 of 71 Edition：A.5 FCC ID: 2AR3P-SH-18PR04 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Smart Socket Trademark: N/A Model/Type reference: SH-18PR04 SH-18, SH-18A, SH-18PR01, SH-18PR02, SH-18PR03, SH-18PR05, SH-18PR06, SH-18PR07, SH-18PR08, SH-18PR09 Prepared For: Shenzhen Shenan Yangguang Electronics Co.,Ltd. Address: West of 4th Floor, Building 9, No. 18, Makan Road, Xili, Nanshan District, 518055, Shenzhen China Manufacturer: Shenzhen Shenan Yangguang Electronics Co.,Ltd. Address: West of 4th Floor, Building 9, No. 18, Makan Road, Xili, Nanshan District, 518055, Shenzhen China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2023-02-09 Sample tested Date: 2023-02-09 to 2023-02-16 Issue Date: 2023-02-17 Report No.: BCTC2302723393E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is WIFI-2.4GHz band radio test report. Tested by: Approved by: Eric Yang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2302723393E No.：BCTC/RF-EMC-005 Page: 3 of 71 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 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 EUT operating Conditions ................................................................................... 13 6.5 Test Result .......................................................................................................... 14 7. Radiated Emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT Operating Conditions .................................................................................. 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 26 8.1 Block Diagram Of Test Setup .............................................................................. 26 8.2 Limit .................................................................................................................... 26 8.3 Test procedure .................................................................................................... 27 8.4 EUT Operating Conditions .................................................................................. 27 8.5 Test Result .......................................................................................................... 28 9. Power Spectral Density Test ............................................................................... 29 9.1 Block Diagram Of Test Setup .............................................................................. 29 9.2 Limit .................................................................................................................... 29 9.3 Test procedure ...............................................................…

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Conducted emissions Radiated Measurement Photos