2BAZM-XMZM4Air-warm Parking heater switch

Gear + Gear - Off On Indicator light Gear + Switch Gear - Trumpet Screen Set up Remote control matching method: when the host is powered on, press and hold the Add key on the host and RTE will be displayed on the screen. At this time, press the+symbol key on the remote control and exit automatically after the matching is successful. Remote control model: TW_M4 battery voltage: 6V(CR2025*2) transmission frequency: 433.92±0.2MHZ modulation mode: ASK/OOK modulation transmission power: more than 10dBm transmission distance: ≤50 meters working temperature: -10°C— 45°C FCC Statement This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

renqiu xinmaizhong auto parts co.ltd Covered Equipment Certification Attestation Letter 5/12/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BAZM-XMZM4 renqiu xinmaizhong auto parts 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. Note: If the equipment for which the applicant seeks authorization is produced by any of the entities identified on the current Covered List, the applicant should include an explanation on why the equipment is not “covered” equipment. renqiu xinmaizhong auto parts 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. Signed: Printed name: mengli sun Title: General manager Company Name: renqiu xinmaizhong auto parts co.ltd Date: 5/12/2023

renqiu xinmaizhong auto parts co.ltd * the applicant must designate a contact located in the United States for purposes of acting as the applicant’s agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process. U.S. Agent Designation for Service of Process - Certification Attestation Letter 5/12/2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA ATTN.: Reviewing Engineer FCC ID: 2BAZM-XMZM4 FRN of applicant: 0033701749 Per section 2.911(d)(7) of the FCC rules, renqiu xinmaizhong auto parts co.ltd certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process: Company Name: Baihetian Innovative Solutions FCC Registration Number (FRN): 0033401605 Physical U.S. Company Address: 6837 Chase Rd, Dearborn, MI 48126, USA Contact Person: Kenneth Young Agent Email Address: [email protected] The above contact person accepts the obligation for service of process. The applicant 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. Applicant Signed: Signed: Printed name: mengli sun Title: General manager Company Name: renqiu xinmaizhong auto parts co.ltd Date: 5/12/2023 Agent Signed: Signed: Printed name: Kenneth Young Title: Manager Company Name: Baihetian Innovative Solutions Date: 5/12/2023

DATE : 2023-05-12 Federal Communications Commission Authorization & Evaluation Division 7345 Oakland Mills Road Columbia, Maryland 21046 Authority to Act as Agent On our behalf, I appoint Jason Wu of Global United Technology Services Co., Ltd.and No. 123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China to act as our agent in the preparation of this application for equipment certification. I certify that submitted documents properly describe the device or system for which equipment certification is sought. I also certify that each unit manufactured, imported or marketed, as defined in the Federal Communications Commission’s regulations will have affixed to it a label identical to that submitted for approval with this application. For instances where our authorized agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for certification, still resides with renqiu xinmaizhong auto parts co.ltd and Dajiang Village, Liangzhao Town, Renqiu City, Hebei Province, China Signature: Name: mengli sun Title: General manager Company: renqiu xinmaizhong auto parts co.ltd

DATE : 2023-05-12 Equipment Autorisation Division Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BAZM-XMZM4 Product Name: Air -warm Parking heater switch Request for Confidentiality Pursuant to Sections 0.457 and 0.459 of the commissions rules, we hereby request that the following documents be held confidential:  Schematics  Block diagram  Operation description These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Pursuant to Sections 0.457 and 0.459 of the commission rules, and in accordance with the FCC Public notice dated June 15, 2004 (DA 04-1705), we hereby request short-term confidentiality for the following items prior to marketing the device.:  Test Setup Photos  External Photos  Internal Photos  User Manual The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of 180 days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Signature: Name: mengli sun Title: General manager Company: renqiu xinmaizhong auto parts co.ltd

Label size:6mm*20mm FCC ID: 2BAZM-XMZM4

FCC ID: 2BAZM-XMZM4 RF Exposure evaluation According to 447498 D04 Interim General RF Exposure Guidance v01 eirp = pt x gt = (EXd) 2 /30 where: pt = transmitter output power in watts, gt = numeric gain of the transmitting antenna (unitless), E = electric field strength in V/m, --- 10 ((dBuV/m)/20) /10 6 d = measurement distance in meters (m)---3m Sopt = (EXd) 2 /30 x gt Frequency(MHz) Field Strength (dBuV/m) antenna gain(dBi) numeric gain calc. Pt (mW) erp(mW) limit (mW) min. distance (cm) 433.92 82.65 -5.716 0.27 0.2 0.033 23.17 0.50 WORSE CASE 0.2mW<23.17mW Then SAR evaluation is not required

Global United Technology Services Co., Ltd. Report No.: GTS2023030476F01 Authorized Signature: Robinson Luo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 22 TEST REPORT Applicant: renqiu xinmaizhong auto parts co.ltd Address of Applicant: Dajiang Village, Liangzhao Town, Renqiu City, Hebei Province, China Manufacturer/Factory: renqiu xinmaizhong auto parts co.ltd Address of Manufacturer/Factory: Dajiang Village, Liangzhao Town, Renqiu City, Hebei Province, China Equipment Under Test (EUT) Product Name: Air -warm Parking heater switch Model No.: XMZ-M4 FCC ID: 2BAZM-XMZM4 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.231 Date of sample receipt: April 12, 2023 Date of Test: April 13, 2023-May 11, 2023 Date of report issued: May 12, 2023 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS2023030476F01 Global United Technology Services Co., Ltd. No.123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 22 2 Version Version No. Date Description 01 May 12, 2023 Original Prepared By: Date: May 12, 2023 Project Engineer Check By: Date: May 12, 2023 Reviewer Report No.: GTS2023030476F01 Global United Technology Services Co., Ltd. No.123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 22 3 Contents Page 1 COVER PAGE .......................................................................................................................................... 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 4.1 MEASUREMENT UNCERTAINTY ............................................................................................................ 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 6 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 6 5.4 TEST FACILITY .................................................................................................................................... 6 5.5 TEST LOCATION ................................................................................................................................. 6 5.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER ......................................................................... 6 5.7 ADDITIONAL INSTRUCTIONS ................................................................................................................. 6 6 TEST INSTRUMENTS LIST ..................................................................................................................... 7 7 TEST RESULTS AND MEASUREMENT DATA ...................................................................................... 9 7.1 ANTENNA REQUIREMENT ..................................................................................................................... 9 7.2 RADIATED EMISSION METHOD ........................................................................................................... 10 7.2.1 Field Strength of The Fundamental Signal ................................................................................ 12 7.2.2 Spurious Emissions ................................................................................................................... 13 7.3 20DB OCCUPY BANDWIDTH .............................................................................................................. 18 7.4 DEACTIVATION TESTING .................................................................................................................... 20 8 TEST SETUP PHOTO ............................................................................................................................ 22 9 EUT CONSTRUCTIONAL DETAILS ..................................................................................................... 22 Report No.: GTS2023030476F01 Global United Technology Services Co., Ltd. No.123-128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 22 4 Test Summary Test Item Section in CFR 47 Result Antenna Requirement 15.203 Pass Conduction Emission 15.207 N/A Field strength of the Fundamental Signal 15.231 (b) Pass Spurious Emissions 15.231 (b)/15.209 Pass 20dB Bandwidth 15.231 (c) Pass Deactivation Testing 15.231 (a)(1) Pass Pass: The EUT complies with the essential requirements in the standard. N/A: Not applicable. 4.1 Measurement Uncertainty Test Item Frequency Range Measurement Uncertainty Notes Radiated Emission 30MHz-200MHz 3.8039dB (1) Radiated Emissio…

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Report No.: RF8230427004-L1-R Page 1 of 10 Antenna Test Report Product Name: Air-warm Parking heater switch Report No. : RF8230427004-L1-R Product Model: XMZ-M4 Security Classification: Open Version：V1.0 Total Page: 10 HAIYUN Laboratory Report Report No.: RF8230427004-L1-R Page 2 of 10 Antenna Test Report Equipment: Air-warm Parking heater switch Model: XMZ-M4 Applicant: renqiu xinmaizhong auto parts co.ltd Applicant address: Yanjia Wan Village, Liangzhao Town, Renqiu City Manufacture: renqiu xinmaizhong auto parts co.ltd Address: Yanjia Wan Village, Liangzhao Town, Renqiu City Date of Receipt: May 5.2023 Date of Test: May 5.2023~May 10.2023 Issue Date: May 11.2023 Tested by: Shenzhen HAIYUN Testing Co., Ltd. Laboratory TEL: 0755-89990666-21508 FAX:0755-26801723 Note: This report shall not be reproduced except in full, without the written approval of Shenzhen HAIYUN Testing Co., Ltd. Laboratory. This document may be altered or revised by Shenzhen HAIYUN Testing Co., Ltd. Laboratory. personnel only, and shall be noted in the revision section of the document. The test results of this report relate only to the tested sample identified in this report. Report No.: RF8230427004-L1-R Page 3 of 10 TABLE OF CONTENTS 1.Purose & Environment .................................................................................................................................. 4 1.1 Purpose ................................................................................................................................................. 4 1.2 Environment ......................................................................................................................................... 4 2........................................................................................................................................................... Te st photos、Test Condition and DUT Antenna ............................................................................................... 5 2.1 Test photos ............................................................................................................................................ 5 2.2 Test Condition ...................................................................................................................................... 5 3 2D-3D Radiation pattern ............................................................................................................................... 6 3.1 2D Radiation pattern test results ........................................................................................................... 6 3.2 3D Radiation pattern test results ........................................................................................................... 7 4 Peak Gain ...................................................................................................................................................... 8 4.1 Test results ........................................................................................................................................... 8 Report No.: RF8230427004-L1-R Page 4 of 10 1.Purose & Environment 1.1 Purpose • Meet the electrical performance index; • Confirm the antenna scheme to meet the design requirements; 1.2 Environment • Test Condition: the network analyzer(E5071C) and SATIMO microwave anechoic chamber • Passive measurement results are presented Report No.: RF8230427004-L1-R Page 5 of 10 2.Test photos、Test Condition and DUT Antenna 2.1 Test photos Microwave anechoic chamber 2.2 Test Condition The network Analyzer Report No.: RF8230427004-L1-R Page 6 of 10 2.3 DUT Antenna PCB of DUT Report No.: RF8230427004-L1-R Page 7 of 10 3 2D Radiation pattern 3.1 2D Radiation pattern test results Antenna_2D Report No.: RF8230427004-L1-R Page 8 of 10 3 3D Radiation pattern 3.2 3D Radiation pattern test results Antenna_3D Report No.: RF8230427004-L1-R Page 9 of 10 4 Peak Gain 4.1Test results Antenna_Peak Gain Frequency（MHz） Peak_Gain . dBi 433.92 -5.716 Report No.: RF8230427004-L1-R Page 10 of 10 STATEMENT a) The test report applies only to the specific samples tested under conditions. b) The test report is invalid without the Inspection Seal. c) The test report is invalid without the signature of the test engineer, auditor, Approver. d) The test report is invalid if it is altered or copied. e) Partial replica is prohibited without permission of Shenzhen HAIYUN Testing Co., Ltd. Laboratory f) The test results presented in this report is only valid on the tested samples. g) Objections to this report should be submitted to the inspection organization in 15 days of receipting the report. It is not accepted if overdue. Shenzhen HAIYUN Testing Co., Ltd. Laboratory Address: No. 2 Danzi North Road, Kengzi Street, Pingshan District,Shenzhen,Guangdong, China Tel: 0755-26021222 Fax: 0755-26021723 （END OF REPORT）

Radiated Emission