2BFB2-KTX-AMB1SAmbient Light

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 to this unit 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. This devi ce and its antenna(s) must no t be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum distance of 0cm from your body.

ALPS ALPINE (China) Co., Ltd. Room 28A1, 28th Floor, 7 Guanghua Road, Chaoyang District, Beijing, China. Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 7/9/2024 U.S. Agent Designation ALPS ALPINE (China) Co., Ltd. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BFB2-KTX-AMB1S): Name and company of U.S. agent: Formates LLC Physical U.S. address of agent: 1400 Hudson St, Hoboken, New Jersey, 07030, USA FRN of U.S. agent: 0033456468 Email address of U.S. agent: [email protected] Formates LLC acknowledges their obligation to accept service of process on behalf of ALPS ALPINE (China) Co., Ltd. ALPS ALPINE (China) Co., Ltd.with the FRN 0035090992 accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Shuxing Qian ALPS ALPINE (China) Co., Ltd. Signature Abi Aribisala Project Manager Formates LLC 48_[mo del] US_Agent_2.911(d)(7) - U, V0 5

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 2 EXTERIOR PHOTOGRAPHS OF EUT External Photos Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2

Label Location FCC ID: 2BFB2-KTX-AMB1S

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 INTERIOR PHOTOGRAPHS OF EUT Internal Photos Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Antenna

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results TestMode Antenna Channel Result[dBm] BLE_1M Ant1 2402 1.57 2440 1.83 2480 1.62 Manufacturing tolerance GFSK(1Mbps) (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) 1 1.5 1 Tolerance ±(dB) 1 1 1 Results Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK(1Mbps) 2.5 2.5 1.78 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is 2.0 dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

Product specification Model: N/A Manufacturer: Shenzhen Yunchuang Century Technology Co., Ltd. Quick Reference Date Antenna module on the system board Frequenc Range 2400 ~ 2500MHz Ant. Port Input Pwr. (dBm) 0 (Typ. BT class 2 output power) Directivity (dBi) 1 (all direction antenna) Efficiency (dB) 6 0.2 % Gain (dBi) 2.0dBi (Peak Gain) Input Impendence(ohm) 50 Polarization Type Vertical & Horizontal V.S.W.R < 1.4 All the technical data and information contained herein are subject to change without prior notice Antenna Layout & module on the system board Antenna Gain Gain Table Unit in dBi XY-plane XZ-plane YZ-plane Efficiency Peak Avg. Peak Avg. Peak Avg. Module Board 2.0 -1.5 -0.9 -6.6 -2.5 -6.1 60.2 % Retum Loss The Environment of Antenna Radiation Pattem 3D radiation pattern diagram XY-plane XZ-plane YZ-plane

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 1 of 16 Appendix Test Data for BLE (Conducted Measurement) Product Name: Ambient Light Trade Mark: ALPINE STYLE Test Model: KTX-AMB1 FCC ID: 2BFB2-KTX-AMB1S Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Anna Hu Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.660 2401.688 2402.348 0.5 PASS BLE_1M Ant1 2440 0.636 2439.704 2440.340 0.5 PASS BLE_1M Ant1 2480 0.660 2479.692 2480.352 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 2 of 16 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 3 of 16 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 1.3474 2401.2124 2402.5598 --- --- BLE_1M Ant1 2440 1.1619 2439.4053 2440.5672 --- --- BLE_1M Ant1 2480 1.3159 2479.2445 2480.5604 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 4 of 16 Test Graphs BLE_1M-Ant1-2402 BLE_1M-Ant1-2440 BLE_1M-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 5 of 16 Appendix C: Maximum peak conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 1.57 ≤30 PASS BLE_1M Ant1 2440 1.83 ≤30 PASS BLE_1M Ant1 2480 1.62 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 6 of 16 Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 7 of 16 Appendix D: Maximum peak power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 0.72 ≤8.00 PASS BLE_1M Ant1 2440 1.01 ≤8.00 PASS BLE_1M Ant1 2480 0.85 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 8 of 16 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 9 of 16 Appendix E: Band edge measurements Test Result TestMod e Antenn a ChNam e Frequency[MHz ] RefLevel[dBm ] Result[dBm ] Limit[dBm ] Verdic t BLE_1M Ant1 Low 2402 0.75 -31.4 ≤-19.25 PASS BLE_1M Ant1 High 2480 0.89 -48.74 ≤-19.11 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 10 of 16 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 11 of 16 Appendix F: Conducted Spurious Emission Test Result TestMod e Antenn a Frequency[MHz ] FreqRange [MHz] RefLeve l [dBm] Result[dBm ] Limit[dBm ] Verdic t BLE_1M Ant1 2402 0~Referenc e 0.72 0.72 --- PASS BLE_1M Ant1 2402 30~1000 0.72 -47.49 ≤-19.28 PASS BLE_1M Ant1 2402 1000~26500 0.72 -38.64 ≤-19.28 PASS BLE_1M Ant1 2440 0~Referenc e 1.02 1.02 --- PASS BLE_1M Ant1 2440 30~1000 1.02 -47.63 ≤-18.98 PASS BLE_1M Ant1 2440 1000~26500 1.02 -37.37 ≤-18.98 PASS BLE_1M Ant1 2480 0~Referenc e -0.31 -0.31 --- PASS BLE_1M Ant1 2480 30~1000 -0.31 -46.75 ≤-20.31 PASS BLE_1M Ant1 2480 1000~26500 -0.31 -37.44 ≤-20.31 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 12 of 16 Test Graphs BLE_1M-Ant1-2402-0~Reference-PASS BLE_1M-Ant1-2402-30~1000-PASS BLE_1M-Ant1-2402-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 13 of 16 BLE_1M-Ant1-2440-0~Reference-PASS BLE_1M-Ant1-2440-30~1000-PASS BLE_1M-Ant1-2440-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 14 of 16 BLE_1M-Ant1-2480-0~Reference-PASS BLE_1M-Ant1-2480-30~1000-PASS BLE_1M-Ant1-2480-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 15 of 16 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2402 19.00 19.00 100.00 0.00 BLE_1M Ant1 2440 19.00 19.00 100.00 0.00 BLE_1M Ant1 2480 19.00 19.00 100.00 0.00 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S Report No.: TZ240305512-BLE Page 16 of 16 Test Graphs NTNV-BLE_1M-Ant1-2402 NTNV-BLE_1M-Ant1-2440 NTNV-BLE_1M-Ant1-2480

FCC TEST REPORT Test report On Behalf of ALPS ALPINE (China) Co., Ltd. For Ambient Light Model No: KTX-AMB1 FCC ID: 2BFB2-KTX-AMB1S Prepared for : ALPS ALPINE (China) Co., Ltd. Room 28A1, 28th Floor, 7 Guanghua Road, Chaoyang District, Beijing, China. Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2024/5/26 ~ 2024/6/10 Date of Report: 2024/6/12 Report Number: TZ240305512-BLE The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. ....... Report No.: TZ240305512-BLE Page 2 of 32 TEST RESULT CERTIFICATION Applicant’s name ................. : ALPS ALPINE (China) Co., Ltd. Address ................................. : Room 28A1, 28th Floor, 7 Guanghua Road, Chaoyang District, Beijing, China. Manufacture's Name ............ : ALPS ALPINE (China) Co., Ltd. Address ................................. : Room 28A1, 28th Floor, 7 Guanghua Road, Chaoyang District, Beijing, China. Product description Trade Mark: ALPINE STYLE Product name ............................ : Ambient Light Model and/or type reference : KTX-AMB1 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ........................................... : Date (s) of performance of tests ............. : 2024/5/26 ~ 2024/6/10 Date of Issue .......................................... : 2024/6/12 Test Result.............................................. : Pass Testing Engineer : (Allen Lai) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) ....... Report No.: TZ240305512-BLE Page 3 of 32 Revision History Revision Issue Date Revisions Revised By 000 2024/6/12 Initial Issue Andy Zhang ....... Report No.: TZ240305512-BLE Page 4 of 32 TABLE OF CONTENTS 1 GENERAL INFORMATION ................................................................................................... 5 1.1 Description of Device (EUT)..................................................................................................... 5 1.2 Wireless Function Tested in this Report ................................................................................... 5 1.3 EUT configuration .................................................................................................................... 6 1.4 Description of Test Facility ....................................................................................................... 6 1.5 Statement of the Measurement Uncertainty ............................................................................. 7 1.6 Measurement Uncertainty ........................................................................................................ 7 1.7 Description of Test Modes ....................................................................................................... 7 1.8 Frequency of Channels ............................................................................................................ 7 2 TEST METHODOLOGY ........................................................................................................ 8 2.1 EUT Configuration ................................................................................................................... 8 2.2 EUT Exercise ........................................................................................................................... 8 2.3 Test Sample ............................................................................................................................ 8 3 SYSTEM TEST CONFIGURATION ....................................................................................... 9 3.1 Justification .............................................................................................................................. 9 3.2 EUT Exercise Software ............................................................................................................ 9 3.3 Special Accessories ................................................................................................................. 9 3.4 Block Diagram/Schematics ...................................................................................................... 9 3.5 Equipment Modifications .......................................................................................................... 9 3.6 Test Setup ............................................................................................................................... 9 4 SUMMARY OF TEST RESULTS ......................................................................................... 10 5 TEST RESULT..................................................................................................................... 11 5.1 On Time and Duty Cycle ........................................................................................................ 11 5.2 Maximum Peak Conducted Output Power Measurement ....................................................... 12 5.3 Power Spectral Density Measurement ................................................................................... 13 5.4 6 dB Spectrum Bandwidth Measurement ............................................................................... 14 5.5 Radiated Emissions Measurement......................................................................................... 15 5.6 Conducted Spurious Emissio…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BFB2-KTX-AMB1S This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 1 TEST SETUP PHOTOS OF THE EUT Radiated Emission Below 1GHz Radiated Emission Above 1GHz