2BU7R-YCHWYK08433 Remote Control

FCC statement: This device complies with part 15 of the FCC Rules. Operation is sub」ectto 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 warning: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Page 1 of 2 FCC ID: 2BU7R-YCHWYK0 8 External photos Page 2 of 2 FCC ID: 2BU7R-YCHWYK0 8

Label FCC ID: 2BU7R-YCHWYK08

Page 1 of 2 FCC ID: 2BU7R-YCHWYK0 8 Internal photos Page 2 of 2 FCC ID: 2BU7R-YCHWYK0 8 PCB ANT

Page 1 of 7 Report No.: AiTSZ-260303011FW2 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. RF Exposure evaluation Product Name : 433 Remote Control Brand Name : N/A Model : PSB-DX-NEW Series Model : PSL-YB, PSL-RB, PSL-DX-2PCS, PSL-YB-2PCS, PSL-RB-2PCS, POOL-06-PJ FCC ID : 2BU7R-YCHWYK08 Applicant : Shenzhen LaiMi Zhihui Technology Co., Ltd. Address : Unit A, 1401 Xingdu Haoting Dafen Community Buji Subdistrict Longgang District Shenzhen Manufacturer : Shenzhen LaiMi Zhihui Technology Co., Ltd. Address : Unit A, 1401 Xingdu Haoting Dafen Community Buji Subdistrict Longgang District Shenzhen Standard(s) : 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Mar. 03, 2026 Date of Test : Mar. 03, 2026~ Mar. 09, 2026 Issued Date : Mar. 16, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 7 Report No.: AiTSZ-260303011FW2 Report Revise Record Report Version Issued Date Notes M0 Mar. 16, 2026 Initial Release Page 3 of 7 Report No.: AiTSZ-260303011FW2 Contents 1 GENERAL INFORMATION .......................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 METHOD OF MEASUREMENT ................................................................................................................................... 6 2.1 APPLICABLE STANDARD.................................................................................................................................................. 6 2.2 EVALUATION METHOD AND LIMIT .................................................................................................................................... 6 2.3 MANUFACTURING TOLERANCE ........................................................................................................................................ 7 2.4 EVALUATION RESULT ..................................................................................................................................................... 7 2.5 CONCLUSION ............................................................................................................................................................... 7 Page 4 of 7 Report No.: AiTSZ-260303011FW2 1 GENERAL INFORMATION 1.1 Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 1.2 General Description of EUT Product Name: 433 Remote Control Model/Type reference: PSB-DX-NEW Serial Model: PSL-YB, PSL-RB, PSL-DX-2PCS, PSL-YB-2PCS, PSL-RB-2PCS, POOL-06-PJ Model difference: All models are same as the samples except model name, all the models are electrical identical same mechanical structure and design. Power Supply: DC 3.0V from battery Hardware Version: N/A Software Version: N/A Sample(s) Status: AiTSZ-260303011-1(Normal sample) AiTSZ-260303011-2(Engineer sample) SRD : Operation frequency: 433.92MHz Modulation: ASK Channel number: 1 Antenna type: PCB antenna Antenna gain: -0.95dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual.. Page 5 of 7 Report No.: AiTSZ-260303011FW2 1.3 Test Facility Test Laboratory: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: FCC-Registration No.: 251906 Designation Number: CN1376 Guangdong Asia Hongke Test Technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. IC —Registration No.: 31737 CAB identifier: CN0165 The 3m Semi-anechoic chamber of Guangdong Asia Hongke Test Technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 31737 A2LA-Lab Cert. No.: 7133.01 Guangdong Asia Hongke Test Technology Limited has been accredited by A2LA for technical competence in the field of electrical testing, and…

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Page 1 of 26 Report No.: AiTSZ-260303011FW1 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name : 433 Remote Control Brand Name : N/A Model : PSB-DX-NEW Series Model : PSL-YB, PSL-RB, PSL-DX-2PCS, PSL-YB-2PCS, PSL-RB-2PCS, POOL-06-PJ FCC ID : 2BU7R-YCHWYK08 Applicant : Shenzhen LaiMi Zhihui Technology Co., Ltd. Address : Unit A, 1401 Xingdu Haoting Dafen Community Buji Subdistrict Longgang District Shenzhen Manufacturer : Shenzhen LaiMi Zhihui Technology Co., Ltd. Address : Unit A, 1401 Xingdu Haoting Dafen Community Buji Subdistrict Longgang District Shenzhen Standard(s) : FCC CFR Title 47 Part 15 Subpart C Section 15.231 Date of Receipt : Mar. 03, 2026 Date of Test : Mar. 03, 2026~ Mar. 09, 2026 Issued Date : Mar. 16, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 26 Report No.: AiTSZ-260303011FW1 Report Revise Record Report Version Issued Date Notes M0 Mar. 16, 2026 Initial Release Page 3 of 26 Report No.: AiTSZ-260303011FW1 Contents 1 TEST SUMMARY ....................................................................................................................................................... 4 1.1 TEST STANDARDS ......................................................................................................................................................... 4 1.2 TEST SUMMARY ........................................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 GENGENERAL INFORMATION ................................................................................................................................... 6 2.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6 2.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.4 SPECIAL ACCESSORIES ................................................................................................................................................... 7 2.5 EQUIPMENT LIST FOR THE TEST ....................................................................................................................................... 7 3 TEST CONDITIONS AND RESULTS .............................................................................................................................. 9 3.1 CONDUCTED EMISSIONS TEST ......................................................................................................................................... 9 3.2 RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 11 3.3 20DB BANDWIDTH ..................................................................................................................................................... 19 3.4 DEACTIVATION TIME ................................................................................................................................................... 20 3.5 ANTENNA REQUIREMENT ............................................................................................................................................. 21 4 TEST SETUP PHOTOGRAPHS OF EUT ....................................................................................................................... 22 5 PHOTOS OF EUT ..................................................................................................................................................... 23 Page 4 of 26 Report No.: AiTSZ-260303011FW1 1 TEST SUMMARY 1.1 Test Standards The tests were performed according to following standards: FCC Rules Part 15.231: Periodic operation in the band 40.66-40.70 MHz and above 70 MHz. ANSI C63.10: 2020: American National Standard for Testing Unlicensed Wireless Devices 1.2 Test Summary FCC Requirements FCC Part 15.207 Conducted Emission N/A FCC Part 15.231(a)(2) Automatically Deactivate PASS FCC Part 15.231(b) Electric Field Strength of Fundamental Emission PASS FCC Part 15.205 &15.209& 15.231(b) Electric Field Strength of Spurious Emission PASS FCC Part 15.231(c) -20dB bandwidth PASS Page 5 of 26 Report No.: AiTSZ-260303011FW1 1.3 Test Facility Test Laboratory: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China The test facility is recognized, certified or accredited by…

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433MHz Antenna specification 1.Schematic diagram of antenna 2.Specifications Center of frequency 433MHz Antenna bandwidth 423-443MHz Antenna gain -0.95dBi VSWR ≤1.5 Polarization direction Linear polarization Radiation direction Omnidirectional Input impedance 50 Ω Power capacity 0.5W Applicant: Address: Guangzhou Cambricon Electronic Technology Co., LTD Room 1119, Building 1, Hongda Trade and Creative Park, No. 96, Yuanxiang Road, Yunpu Street, Huangpu District, Guangzhou City 3.Antenna characteristics Smith Chart

Page 1 of 1 FCC ID: 2BU7R-YCHWYK08 Radiated Emission