2BTD6-L-LS-USRosen

FCC ID LABEL: Ca. 20mm x 10mm Label Location FCC ID: 2BTD6-L-LS-US

FCC RF Exposure EUT Description: Rosen Model No.: L-LS-US FCC ID: 2BTD6-L-LS-US 1. Limits According to KDB 447498 D01 General RF Exposure Guidance v06 The 1‐g and 10‐g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤50 mm are determined by: [(max power of channel, including tune‐up tolerance, mW)/(min. test separation distance, mm)]ꞏ[√f(GHz)]≤3.0 for 1‐g SAR and ≤ 7.5 for 10‐g extremity SAR, Where: Result=P/D*√F F= the RF channel transmit frequency in GHz P=Maximum turn‐up power in mw D=Min. test separation distance in mm 2. Test Result of RF Exposure Evaluation EIRP(dBm)=79.62(dBuV/m)-95.2=-15.58(dBm) Frequency (MHz) Output power (dBm) Tune Up Power (dBm) Max Tune Up power mW Min test separati on distance mm Result Limit SAR Test Exclusion 433.915 -15.58 -15±1(-14) 0.04 5 0.005 3.0 Pass Note: PK Output power= conducted power. Conducted power see the test report HK2510275853-E, antenna gain=0dBi Per KDB 447498 D01, when the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. The test exclusion threshold is 0.005 which is<= 3, SAR testing is not required. Note: Exclusion Thresholds Results=[(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ꞏ[√f(GHz)] f(GHz) is the RF channel transmit frequency in GHz Distance=5mm

1. Antenna specifications 2. Antenna size Frequency (MHz) 433.915MHz Type PCB antenna Antenna gain (dBi) 0dBi Manufacturer Dongguan Yumei Electronics Co., Ltd Room 301, No. 9 Banhu Road, Huangjiang Town, Dongguan City, Guangdong Province

Page 1 of 28 Report No.: HK2510275853-E Prepared For: chengdushirenyixianghemaoyiyouxiangongsi Room 305, 3rd Floor, No. 1248 Panda Avenue, Chenghua District, Chengdu City, Sichuan Province, China Prepared By: Shenzhen HUAK Testing Technology Co., Ltd. 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China Date of Test: Oct. 27, 2025 ~ Nov. 27, 2025 Date of Report: Nov. 27, 2025 Report Number: HK2510275853-E FCC Test Report Test Report On Behalf of chengdushirenyixianghemaoyiyouxiangongsi For Rosen Model No.: L-LS-US FCC ID: 2BTD6-L-LS-US Applica Address Manufa Address Produc Trade M Product Model a Standa This pu b Shenzh the mat e assume due to it Date of Date (s ) Date of Test Re s ant’s Name s ................ acturer's Na s ................ ct Descripti Mark ........... t Name ........ and/or Type rds ............ blication ma en HUAK T erial. Shenz e liability for ts placemen Test .......... ) of Perform Issue ......... sult ............ e ................. ................. ame .......... ................. on ................. .................... Reference ................. ay be reprod Testing Tech zhen HUAK damages r nt and conte .................. mance of Tes .................. .................. Testing E Technica l Authoriz e Test R . : chengdu . : Room 3 0 Chengdu . : FengCha . : Room 4 0 Donggua . : N/A : Rosen : L-LS-U S . : FCC Pa r ANSI C6 duced in wh hnology Co. K Testing Te resulting fro ext. ................ : sts ............ : ................ : ................ : ngineer l Manager ed Signatory Page 2 of 2 Result Ce ushirenyixia 05, 3rd Floo u City, Sichu ao Technolo 01, No. 12 Y an City, Gua S rt15 Subpar 63.10: 2020 hole or in pa ., Ltd. is ack echnology C om the reade Oct. 27, 2 Nov. 27, 2 Pass y 8 ertificatio nghemaoyi or, No. 1248 uan Provinc ogy (DongG Yinhe Stree angdong Pr rt C 2017, S art for non-c knowledged Co., Ltd. take er's interpre 2025 ~ Nov. 2 2025 Len L Sliver W Jason Z Rep on youxiango n 8 Panda Ave ce, China Guan) Co., L et, Yuanjiang rovince Section 15.2 commercial d as copyrig es no respo etation of th 27, 2025 Liao Wan Zhou port No.: HK ngsi enue, Chen Ltd. gyuan, Cha 31 l purposes a ght owner a onsibility for he reproduc K2510275853 nghua Distri angping Tow as long as t nd source o r and will no ed material 3-E ict, wn, the of ot Page 3 of 28 Report No.: HK2510275853-E Contents 1 . Summary ............................................................................................................................................................. 5 1.1 Test Procedures and Results .................................................................................................................. 5 1.2 Information of the Test Laboratory .......................................................................................................... 5 1.3 Measurement Uncertainty........................................................................................................................ 5 2. General Information ............................................................................................................................................ 6 2.1 Description of Device (EUT) .................................................................................................................... 6 2.2 Description of Test Setup ......................................................................................................................... 7 2.3 Description of Support Units .................................................................................................................... 8 2.4 List of Channels ......................................................................................................................................... 8 2.5 Test Equipment List .................................................................................................................................. 9 3. AC Conducted Emission Test .......................................................................................................................... 10 3.1 AC Conducted Power Line Emission Limit .......................................................................................... 10 3.2 Test Setup ................................................................................................................................................ 10 3.3 Test Procedure ........................................................................................................................................ 10 3.4 Test Data .................................................................................................................................................. 11 4. Radiated Emissions .......................................................................................................................................... 12 4.1 Standard Applicable ................................................................................................................................ 12 4.2 Test Procedure ........................................................................................................................................ 12 4.3 Corrected Amplitude & Margin Calculation ......................................................................................... 14 4.4 Environmental Conditions ...................................................................................................................... 14 4.5 Test Data .................................................................................................................................................. 14 5. 20dB Occupy Bandwidth Test ......................................................................................................................... 18 5.1 Standard Applicable .............................................................................................................…

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Test Model: L-LS-US Radiated Emission RF Conducted Emission