2A95E-F2RV1F2 LIGHT STICK

3plus Ltd. 28, Jandari-ro, Mapo-gu, Seoul, Republic of Korea Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 1/12/2024 U.S. Agent Designation 3plus 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: 2A95E- F2RV1): 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 3plus Ltd.. 3plus Ltd. with the FRN 0033352576 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 sung su Kim 3plus 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: 2A95E-F2RV1 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5 Fig.6

Label & Label Location Model: F2RV1 FCC ID: 2A95E-F2RV1

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 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 Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Zigbee Antenna Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 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: 2A95E-F2RV1 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: 2A95E-F2RV1 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 Zigbee Mode TestMode Antenna Channel Result[dBm] ZIGB Ant1 2405 -1.00 2440 -2.08 2480 -2.56 Manufacturing tolerance O-QPSK (Peak) Channel Channel 11 Channel 18 Channel 26 Target (dBm) -1.5 -2.5 -2.5 Tolerance ±(dB) 1.0 1.0 1.0 Results Test Mode Channel Frequency (MHz) Max. Tune Up Power (dBm, Peak) Max. Eirp including Tune Up (dBm, Peak) Max. Eirp including Tune Up (mW, Peak) Exemption Limit (mW) ZIGB 2405 -0.5 -0.5 0.89 3 2440 -1.5 -1.5 0.71 3 2480 -1.5 -1.5 0.71 3 The antenna gain of the EUT for BT is -2.0dBi (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. ----------------THE END OF REPORT---------------

．．．．．．．．．．．．．．．．．．．．．．．．．． NowGo International Co.,Ltd 2. Test Result 主主GAIN& Efficiency Frequency(MHz ) Efficiency (0/o) Average GAIN(dB) Peak GAIN (dBi) 2400 4.33 - 13.64 2450 5.26 -12. 79 2500 5.96 -12. 25 -8.84 -6. 67 -2 . 0 6 ．．．．．．．．．．．．．．．．．．．．．．．．． NowGo International Co.,Ltd 2. Test Result 2450.000MHz H 2500.000MHz H 2450.000MHz ,6.万 s.oo 2500.000MHz ＿＿＿＿，扭。 ‘.2 ,8,7 8.1 ”6 10.9 ’ 4.6 ’3.7 18.6 ’7.5 ,22.6 2’3 ·266 2!仇’ 2500.000MHz E1 2500.000MHz E2 2450.000MHz E1 2450.000MHz E2 �1 争667 ！，。 ，。 ι A」� 8

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 1 of 16 Appendix Test Data for Zigbee (Conducted Measurement) Product Name: F2 LIGHT STICK Trade Mark: N/A Test Model: F2RV1 FCC ID: 2A95E-F2RV1 Environmental Conditions Temperature: 25.5C Relative Humidity: 55% ATM Pressure: 100.0 kPa Test Engineer: Anna Hu Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Freq(MHz) DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict ZIGB Ant1 2405 1.740 2404.180 2405.920 0.5 PASS 2440 1.670 2439.190 2440.860 0.5 PASS 2480 1.830 2479.100 2480.930 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 2 of 16 Test Graphs ZIGB_Ant1_2405 ZIGB_Ant1_2440 ZIGB_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 3 of 16 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Freq(MHz) OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict ZIGB Ant1 2405 2.2832 2403.8672 2406.1504 --- --- 2440 2.3280 2438.8519 2441.1799 --- --- 2480 2.3188 2478.8520 2481.1708 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 4 of 16 Test Graphs ZIGB_Ant1_2405 ZIGB_Ant1_2440 ZIGB_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 5 of 16 Appendix C: Maximum conducted output power Test Result TestMode Antenna Freq(MHz) Result[dBm] Limit[dBm] Verdict ZIGB Ant1 2405 -1.00 ≤30 PASS 2440 -2.08 ≤30 PASS 2480 -2.56 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 6 of 16 Test Graphs ZIGB_Ant1_2405 ZIGB_Ant1_2440 ZIGB_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 7 of 16 Appendix D: Maximum power spectral density Test Result TestMode Antenna Freq(MHz) Result[dBm/3-100kHz] Limit[dBm/3kHz] Verdict ZIGB Ant1 2405 -16.97 ≤8.00 PASS 2440 -17.43 ≤8.00 PASS 2480 -18.23 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 8 of 16 Test Graphs ZIGB_Ant1_2405 ZIGB_Ant1_2440 ZIGB_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 9 of 16 Appendix E: Band edge measurements Test Result TestMode Antenna ChName Freq(MHz) RefLevel[dBm] Result[dBm] Limit[dBm] Verdict ZIGB Ant1 Low 2405 -4.79 -40.65 ≤-24.79 PASS High 2480 -6.64 -49.16 ≤-26.64 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 10 of 16 Test Graphs ZIGB_Ant1_Low_2405 ZIGB_Ant1_High_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 11 of 16 Appendix F: Conducted Spurious Emission Test Result TestMode Antenna Freq(MHz) FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict ZIGB Ant1 2405 Reference -5.13 -5.13 --- PASS 30~1000 -5.13 -63.66 ≤-25.13 PASS 1000~26500 -5.13 -49.52 ≤-25.13 PASS 2440 Reference -6.45 -6.45 --- PASS 30~1000 -6.45 -62.51 ≤-26.45 PASS 1000~26500 -6.45 -49.77 ≤-26.45 PASS 2480 Reference -7.74 -7.74 --- PASS 30~1000 -7.74 -61.28 ≤-27.74 PASS 1000~26500 -7.74 -49.93 ≤-27.74 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 12 of 16 Test Graphs ZIGB_Ant1_2405_0~Reference ZIGB_Ant1_2405_30~1000 ZIGB_Ant1_2405_1000~26500 ZIGB_Ant1_2440_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 13 of 16 ZIGB_Ant1_2440_30~1000 ZIGB_Ant1_2440_1000~26500 ZIGB_Ant1_2480_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 14 of 16 ZIGB_Ant1_2480_30~1000 ZIGB_Ant1_2480_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 15 of 16 Appendix G: Duty Cycle Test Result TestMode Antenna Freq(MHz) Transmission Duration [ms] Transmission Period [ms] Duty Cycle [%] Limit Verdict ZIGB Ant1 2405 100.00 100.00 100.00 --- --- 2440 100.00 100.00 100.00 --- --- 2480 100.00 100.00 100.00 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 Report No.: TZ231205257-E Page 16 of 16 Test Graphs ZIGB_Ant1_2405 ZIGB_Ant1_2440 ZIGB_Ant1_2480

Report No.: TZ231205257-E Page 1 of 33 FCC TEST REPORT Test report On Behalf of 3Plus Ltd For F2 LIGHT STICK Model No.: F2RV1 FCC ID: 2A95E-F2RV1 Prepared for : 3Plus Ltd 28, Jandari-ro, Mapo-gu, Seoul, Republic of Korea 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: 2023/12/25~2023/12/27 Date of Report: 2023/1/8 Report Number: TZ231205257-E 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.: TZ231205257-E Page 2 of 33 TEST RESULT CERTIFICATION Applicant’s name ................. : 3Plus Ltd Address .................................. : 28, Jandari-ro, Mapo-gu, Seoul, Republic of Korea Manufacture's Name ............ : 3Plus Ltd Address .................................. : 28, Jandari-ro, Mapo-gu, Seoul, Republic of Korea Product description Trade Mark ............................. : N/A Product name ......................... : F2 LIGHT STICK Model and/or type reference : F2RV1 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 ............. : 2023/12/25~2023/12/27 Date of Issue .......................................... : 2023/1/8 Test Result .............................................. : Pass Testing Engineer : (Anna Hu) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ231205257-E Page 3 of 33 Revision History Revision Issue Date Revisions Revised By 000 2023/1/8 Initial Issue Andy Zhang Report No.: TZ231205257-E Page 4 of 33 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 5 1.1. DESCRIPTION OF DEVICE (EUT) ........................................................................................................................ 5 1.2 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. GENERAL TEST PROCEDURES ........................................................................................................................... 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 .................................................................................................. 1…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2A95E-F2RV1 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