2A889-XOPENSport Bluetooth Earbuds

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 1 of 5 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 2 of 5 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 3 of 5 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 4 of 5 Fig.7 Fig.8 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 5 of 5 Fig.9

Label Location FCC ID: 2A889-XOPEN

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN 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: 2A889-XOPEN 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: 2A889-XOPEN 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 Bluetooth antenna

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN 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: 2A889-XOPEN 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: 2A889-XOPEN 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 Test Mode Antenna Frequency[MHz] Result[dBm] DH5 Ant1 2402 -6.99 DH5 Ant1 2441 -4.75 DH5 Ant1 2480 -3.28 2DH5 Ant1 2402 -6.67 2DH5 Ant1 2441 -4.10 2DH5 Ant1 2480 -2.93 3DH5 Ant1 2402 -6.15 3DH5 Ant1 2441 -3.63 3DH5 Ant1 2480 -2.77 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -7.5 -5.0 -4.0 Tolerance ±(dB) 1 1 1 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -7 -4.5 -3.5 Tolerance ±(dB) 1 1 1 8-DPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -6.5 -4 -3.5 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 -3 -3.0 0.50 3 π/4-DQPSK -2.5 -2.5 0.56 3 8DPSK -2.5 -2.5 0.56 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 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.

天线规格书 Antenna Specific 制造商(Manufacturer) ： Shenzhen Ouchao Technology Co., Ltd 地址(address) ： 303, Building 34, Longzhu Garden, Xixiang Street, Bao’an District, Shenzhen, China. 产品种类：Chip Antenna Product Type: Chip Antenna 产品技术指标(Technical parameter) Electronic Parameter 频率范围(Frequency Range) 2400~2500MHz 输入阻抗(input impedance) 50Ω 驻波比(VSWR) ≤2 增益(Gain) Max 0.0dBi Physical Parameter 材料(Material) PCB/Cu 工作温度(operation temperature) -30°C~+80°C 储存温度(store temperature) -30°C~+80°C 产品规格图(Antenna Specification chart) Test Result: Frequency Gain.dBi Frequency Efficiency 2400MHz -0.31 2400MHz 28% 2450MHz 0.0 2450MHz 31% 2500MHz -0.71 2500MHz 36% Direction: Smith Chart: VSWR:

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 1 of 46 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: Sport Bluetooth Earbuds Trade Mark: TREBLAB Test Model: X-Open FCC ID: 2A889-XOPEN Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: 20dB Emission Bandwidth Test Result TestMode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 1.014 2401.442 2402.456 --- --- DH5 Ant1 2441 0.963 2440.496 2441.459 --- --- DH5 Ant1 2480 0.963 2479.493 2480.456 --- --- 2DH5 Ant1 2402 1.275 2401.331 2402.606 --- --- 2DH5 Ant1 2441 1.278 2440.331 2441.609 --- --- 2DH5 Ant1 2480 1.323 2479.295 2480.618 --- --- 3DH5 Ant1 2402 1.275 2401.325 2402.600 --- --- 3DH5 Ant1 2441 1.293 2440.316 2441.609 --- --- 3DH5 Ant1 2480 1.290 2479.313 2480.603 --- --- Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 2 of 46 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 3 of 46 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 4 of 46 2DH5-Ant1-2480 3DH5-Ant1-2402 3DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 5 of 46 3DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 6 of 46 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.88332 2401.5217 2402.4050 --- --- DH5 Ant1 2441 0.89464 2440.5213 2441.4160 --- --- DH5 Ant1 2480 0.87818 2479.5235 2480.4017 --- --- 2DH5 Ant1 2402 1.1917 2401.3661 2402.5578 --- --- 2DH5 Ant1 2441 1.1917 2440.3628 2441.5545 --- --- 2DH5 Ant1 2480 1.1860 2479.3697 2480.5557 --- --- 3DH5 Ant1 2402 1.1916 2401.3638 2402.5554 --- --- 3DH5 Ant1 2441 1.1945 2440.3618 2441.5563 --- --- 3DH5 Ant1 2480 1.1793 2479.3667 2480.5460 --- --- Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 7 of 46 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 8 of 46 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 9 of 46 2DH5-Ant1-2480 3DH5-Ant1-2402 3DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 10 of 46 3DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 11 of 46 Appendix C: Maximum peak conducted output power Test Result Test Mode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict DH5 Ant1 2402 -6.99 ≤30 PASS DH5 Ant1 2441 -4.75 ≤30 PASS DH5 Ant1 2480 -3.28 ≤30 PASS 2DH5 Ant1 2402 -6.67 ≤20.97 PASS 2DH5 Ant1 2441 -4.10 ≤20.97 PASS 2DH5 Ant1 2480 -2.93 ≤20.97 PASS 3DH5 Ant1 2402 -6.15 ≤20.97 PASS 3DH5 Ant1 2441 -3.63 ≤20.97 PASS 3DH5 Ant1 2480 -2.77 ≤20.97 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 12 of 46 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 13 of 46 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS 2DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 14 of 46 2DH5-Ant1-2480-PASS 3DH5-Ant1-2402-PASS 3DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 15 of 46 3DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 16 of 46 Appendix D: Carrier frequency separation Test Result TestMode Antenna Frequency[MHz] Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 1.188 ≥1.014 PASS 2DH5 Ant1 Hop 1.01 ≥0.882 PASS 3DH5 Ant1 Hop 1.022 ≥0.862 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 17 of 46 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 18 of 46 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 19 of 46 Appendix E: Time of occupancy Test Result TestMode Antenna Frequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.908 120 0.349 ≤0.4 PASS 2DH5 Ant1 Hop 2.913 60 0.175 ≤0.4 PASS 3DH5 Ant1 Hop 2.917 90 0.263 ≤0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 20 of 46 Test Graphs DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 21 of 46 2DH5-Ant1-Hop-PASS 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 22 of 46 Appendix F: Number of hopping channels Test Result TestMode Antenna Frequency[MHz] Result[Num] Limit[Num] Verdict DH5 Ant1 Hop 79 ≥15 PASS 2DH5 Ant1 Hop 79 ≥15 PASS 3DH5 Ant1 Hop 79 ≥15 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 23 of 46 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 24 of 46 3DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN Report No.: TZ0003240803FRF01 Page 25 of 46 Appendix G: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 -8.18 -50.87 ≤-28.18 PASS DH5 Ant1 High 2480 -3.94 -49.28 ≤-23.94 PASS DH5 Ant1 Low Hop_2402 -9.16 -50.45 ≤-29.16 PASS DH5 Ant1 High Hop_2480 -4.11 -48.76 ≤-24.11 PASS 2DH5 Ant1 Low 2…

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FCC TEST REPORT Test report On Behalf of Productech Corporation For Sport Bluetooth Earbuds Model No.: X-Open, X-Open-B, X-Open-W FCC ID: 2A889-XOPEN Prepared for : Productech Corporation 7901 4TH ST N, SUITE 4240, St. Petersburg, Florida, United States Prepared By : Shenzhen Tongzhou Testing Co.,Ltd. 1st Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2024/8/22 ~ 2024/9/1 Date of Report: 2024/9/2 Report Number: TZ0003240803FRF01 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.: TZ0003240803FRF01 Page 2 of 36 TEST RESULT CERTIFICATION Applicant’s name ................. : Productech Corporation Address .................................. : 7901 4TH ST N, SUITE 4240, St. Petersburg, Florida, United States Manufacture's Name ............ : Productech Corporation Address .................................. : 7901 4TH ST N, SUITE 4240, St. Petersburg, Florida, United States Product description Trade Mark ................................ : TREBLAB Product name ............................ : Sport Bluetooth Earbuds Model and/or type reference . : X-Open, X-Open-B, X-Open-W 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 ............. : 2024/8/22 ~ 2024/9/1 Date of Issue .......................................... : 2024/9/2 Test Result .............................................. : Pass Testing Engineer : (Allen Lai) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ0003240803FRF01 Page 3 of 36 Revision History Revision Issue Date Revisions Revised By 00 2024/9/2 Initial Issue Andy Zhang Report No.: TZ0003240803FRF01 Page 4 of 36 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 ............................................................................ 6 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 MEASUREMENT RESULTS ............................................................................................ 11 5.1 Maximum Peak Conducted Output Power ............................................................................ 11 5.2 Frequency Separation and 20 dB Bandwidth ........................................................................ 12 5.3 Number of Hopping Frequency ............................................................................................. 13 5.4 Time of Occupancy (Dwell Time) .......................................................................................... 14 5.5 Conducted Spurious Emissions and Band Edges Test ......................................................... 15 5.6 Restricted Band Emission Limit .........................................…

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Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 1 of 2 TEST SETUP PHOTOS OF THE EUT Conducted Emission Radiated Emission Below 1GHz Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2A889-XOPEN This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd. Page 2 of 2 Radiated Emission Above 1GHz