2AKF6-EF570CElectric Fireplace

(NINGBO RICHEN ELECTRICAL APPLIANCE CO., LTD.) Rev 2026-04-24 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 07-19-2026 Ref: Attestation Statements Part 2.911(d)(5)(i) and Part 2.911(d)(5)(ii) FCC ID: 2AKF6-EF570C Part 2.911(d)(5)(i) [NINGBO RICHEN ELECTRICAL APPLIANCE CO., LTD.] (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment and does not contain anti-virus software or cybersecurity software prohibited from receiving an equipment authorization pursuant to 47 CFR 2.903, KDB 986446 D01 Covered Equipment Guidance, and FCC Covered List (www.fcc.gov/supplychain/coveredlist). Part 2.911(d)(5)(ii) [NINGBO RICHEN ELECTRICAL APPLIANCE CO., LTD.] (“the applicant”) 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, Kunlv Mo / Testing engineer NINGBO RICHEN ELECTRICAL APPLIANCE CO., LTD.

Ningbo Richen Electrical Appliance Co., Ltd. U.S. Agent Designation for Service of Process - Certification Attestation Letter 19/07/2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AKF6-EF570C Applicant FRN: 0026058693 Ningbo Richen Electrical Appliance Co., Ltd. certifies that, as of the date of the filing of the application, Global Product Services and Consultation LLC is our designated U.S. agent for service of process for the above referenced FCC ID. Ningbo Richen Electrical Appliance Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Global Product Services and Consultation LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Global Product Services and Consultation LLC FCC Registration Number (FRN): 0033406703 Physical U.S. Company Address: 328 W Palm Ave. Monrovia, CA91016 Contact Person: Michael Chan Cell Phone: 626-366-4358 Agent Email Address: [email protected] Sincerely, Company: Ningbo Richen Electrical Appliance Co., Ltd. Designated Agent: Global Product Services and Consultation LLC Company Representative: Kunlv Mo Designated Agent Representative: Michael Chan Title: Testing engineer Title: Technical Director Signature: Signature: Date : 07/20/2026 SC : 6072017

(Ningbo Richen Electrical Appliance Co., Ltd.) Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AKF6-EF570C 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 Type File Name Block diagram, Schematic, Operational Description Block diagram.pdf, Schematic.pdf , Operational Description.pdf 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 request temporary confidential treatment of information accompanying this application as outlined below: Short-term confidentiality requested: 180 days Exhibit Type File Name Internal photos, Test setup photos, User Manual Internal photos.pdf, Test setup photos.pdf, User Manual.pdf Sincerely, Kunlv Mo / Testing engineer 2026.07.19 Ningbo Richen Electrical Appliance Co., Ltd.

Ningbo Richen Electrical Appliance Co. , Ltd. Difference Statement Model： EF566C, EF567C, EF568C, EF569C, EF570C All the models differ only in their appearance dimensions. The schematics, PCB layouts, etc. are all the same. The description of the difference is as follows: We chose the model EF570C for the test. The description of the difference is as follows ： (a) Main Frame: Dimensions: As follows. Model Designation Dimensions EF566C Overall 436mm long by 404 mm high by 105 mm deep EF567C Overall 980mm long by 404 mm high by 106mm deep EF568C Overall 1180mm long by 404 mm high by 106mm deep EF569C Overall 1433mm long by 404 mm high by 106mm deep EF570C Overall 1636mm long by 404 mm high by 106mm deep Openings: As described below. Openings Location Dimensions Rear Cover Provided with 33 Slot type openings, each opening is measured approx. 5mm high by 40mm long. And provided with 8 louver type openings,each opening ismeasured approx.83mm long by 5.2mm high Side Cover No openings provided. Bottom Cover No openings provided. Top Cover Provided with 30 Slot type openings, each opening is measured approx. 5mm high by 40mm long. Front (Air outlet) Overall 260 mm long by 30 mm high area, soldered with a steel wire mesh panel, each mesh opening is approx. 8 mm by 4 mm. (b)Description of electronic components: As follows. Model Designation Power Board Keypad WiFi receiver Remote Control EF566C RC01-102C RC02-082A RC05-015A RCS31 EF567C RC01-102C RC02-082A RC05-015A RCS31 EF568C RC01-102C RC02-082A RC05-015A RCS31 EF569C RC01-102C RC02-082A RC05-015A RCS31 EF570C RC01-102C RC02-082A RC05-015A RCS31 July 19, 2026 Kunlv Mo /Testing engineer Ningbo Richen Electrical Appliance Co., Ltd.

(Ningbo Richen Electrical Appliance Co., Ltd.) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: May 25, 2026 SUBJECT: FCC Application for FCC ID: 2AKF6-EF570C To Whom It May Concern: We, the undersigned, hereby authorize Tony Wei at EMTEK(NINGBO) CO., LTD. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by EMTEK(NINGBO) 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, Kunlv Mo/Testing Engineer Ningbo Richen Electrical Appliance Co.,Ltd.

Label Product name: Electric Fireplace Model (HVIN):EF570C FCC ID:2AKF6- EF570C IC:24293- EF570C 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, and (2) this device must accept any interference received, including interference that may cause undesired operation.

FCC ID: 2AKF6-EF570C RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE,1mW/cm 2 . If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. mW = 10^( dBm/10) 11.2 Measurement Result Antenna gain: 2.54 dBi; R=20cm WIFI Operation Frequency: 2412 MHz-2462 MHz; Channel Freq. (MHz) modulation Measured power (dBm) Tune-up power (dBm) Max tune-up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2) Power density Limits (mW/cm2 ) 2412 802.11b 23.25 23.00±1 24.00 1.79 0.075462142 1 2437 23.62 23.00±1 24.00 1.79 0.082172997 1 2462 23.54 23.00±1 24.00 1.79 0.080673171 1 2412 802.11g 23.10 23.00±1 24.00 1.79 0.072900269 1 2437 23.55 23.00±1 24.00 1.79 0.080859142 1 2462 23.42 23.00±1 24.00 1.79 0.078474603 1 2412 802.11n20 23.44 23.00±1 24.00 1.79 0.078836826 1 2437 23.80 23.00±1 24.00 1.79 0.085650347 1 2462 23.76 23.00±1 24.00 1.79 0.084865100 1 *** End of Report ***

Report No. ENB2604210063W00901R Page 1 of 93 Ver.1.0 TEST REPORT Product Name : Electric Fireplace Model Number : EF566C, EF567C, EF568C, EF569C, EF570C FCC ID : 2AKF6-EF570C Prepared for : Ningbo Richen Electrical Appliance Co., Ltd. Address : No.19 Yongdinghe Road, Xiapu, Beilun, Ningbo, 315807 Zhejiang, P.R.China Prepared by : EMTEK (NINGBO) CO., LTD. Address : No. 8, Building 8, Lane 216, Qingyi Road, Ningbo High-Tech Zone, Ningbo, Zhejiang, China Tel: +86-574-27907998 Fax: +86-574-27721538 Report Number : ENB2604210063W00901R Date(s) of Tests : April 21, 2026 to August 20, 2026 Date of issue : August 23, 2026 $二维码$ Report No. ENB2604210063W00901R Page 2 of 93 Ver.1.0 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ....................................................................................................................... 3 2 EUT TECHNICAL DESCRIPTION ..................................................................................................................... 5 3 SUMMARY OF TEST RESULT ........................................................................................................................... 6 4 TEST METHODOLOGY ...................................................................................................................................... 7 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ............................................................................... 7 4.2 MEASUREMENT EQUIPMENT USED .......................................................................................................... 7 4.3 DESCRIPTION OF TEST MODES ................................................................................................................... 9 5 FACILITIES AND ACCREDITATIONS ........................................................................................................... 10 5.1 FACILITIES .................................................................................................................................................... 10 5.2 EQUIPMENT .................................................................................................................................................. 10 5.3 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 10 6 TEST SYSTEM UNCERTAINTY ........................................................................................................................11 7 SETUP OF EQUIPMENT UNDER TEST .......................................................................................................... 12 7.1 RADIO FREQUENCY TEST SETUP 1 .......................................................................................................... 12 7.2 RADIO FREQUENCY TEST SETUP 2 .......................................................................................................... 12 7.3 CONDUCTED EMISSION TEST SETUP ...................................................................................................... 15 7.4 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ...................................................................... 16 7.5 SUPPORT EQUIPMENT ................................................................................................................................ 16 8 TEST REQUIREMENTS .................................................................................................................................... 17 8.1 DTS 6DB BANDWIDTH ................................................................................................................................ 17 8.2 DTS 99%BANDWIDTH ................................................................................................................................. 21 8.3 MAXIMUM AVG CONDUCTED OUTPUT POWER .................................................................................... 25 8.4 MAXIMUM POWER SPECTRAL DENSITY ................................................................................................ 27 8.5 UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS .............................................. 31 8.6 RADIATED SPURIOUS EMISSION .............................................................................................................. 44 8.7 CONDUCTED EMISSION TEST ................................................................................................................... 86 8.8 ANTENNA APPLICATION ............................................................................................................................ 93 Report No. ENB2604210063W00901R Page 3 of 93 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : Ningbo Richen Electrical Appliance Co., Ltd. Address : No.19 Yongdinghe Road, Xiapu, Beilun, Ningbo, 315807 Zhejiang, P.R.China Manufacturer : Ningbo Richen Electrical Appliance Co., Ltd. Address : No.19 Yongdinghe Road, Xiapu, Beilun, Ningbo, 315807 Zhejiang, P.R.China EUT : Electric Fireplace Model Name : EF566C, EF567C, EF568C, EF569C, EF570C Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK(NINGBO) CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2020) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2, Part 15.247. The test results of this report relate only to the tested sample identified in this report. Date of Test : April 21, 2026 to August 20, 2026 Prepared by : WK Luo /Engineer Reviewer : June Gao /Supervisor Approved & Authorized Signer : Tony Wei /Manager Report No. ENB2604210063W00901R Page 4 of 93 Ver.1.0 Modified History Version Report No. Revision Date Summary / ENB2604210063W00901R / Original Report Report No. ENB2604210063W00901R Page…

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AntennaSpecification Manufacture：TUYA ProductName：WBR3Antenna AntennaType：PCB TestDate：2021.05.20 Testedby：LongWang Approvedby：Licco Content 1.GeneralDescription.................................................................................1 2.TestConfigurations...................................................................................2 2.1TestEnvironment............................................................................2 2.2TestEquipment...............................................................................2 2.3TestPrinciple...................................................................................2 3.TestResults..............................................................................................3 3.1GainandEfficiency..........................................................................3 3.2RadiationPattern............................................................................4 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 ProductNameWBR3Antenna Productmodel WBR3 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 3.1GainandEfficiency Frequency(MHz)PeakGain(dBi)Efficiency(%) 2400 1.6252.29 2410 1.7152.17 2420 1.9353.14 2430 1.9854.16 2440 2.0057.62 2450 2.1759.64 2460 2.4561.55 2470 2.3860.64 2480 2.5462.86 2490 2.3059.85 2500 2.4960.41 4 3.2RadiationPattern Phi02D Phi902D 5 Theta902D 2480MHz3D 6 4. AntennaDimensions 5.EUTPhoto 7 6.TestSetupPhoto