2ASNB-TU01TRUE WIRELESS STEREO BT EARPHONES

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&"31)0/&4 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 device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or transmitter. Radiation Exposure Statement The device has been evaluated to meet general RF exposure requirement in portable exposure condition without restriction.

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 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: 2ASNB-TU01 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: 2ASNB-TU01 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: 2ASNB-TU01 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: 2ASNB-TU01 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: 2ASNB-TU01

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Bluetooth antenna Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 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: 2ASNB-TU01 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: 2ASNB-TU01 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 -3.09 DH5 Ant1 2441 -2.51 DH5 Ant1 2480 -2.43 2DH5 Ant1 2402 -2.42 2DH5 Ant1 2441 -1.80 2DH5 Ant1 2480 -1.75 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.5 -3.0 -3.0 Tolerance ±(dB) 1 1 1 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3 -2.5 -2 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 -2 -0.9 0.81 3 π/4-DQPSK -1 0.1 1.01 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 3.21 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.

深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 1 Version：A2.0ATN-QD-PAS-0033 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. 规格书 SPECIFICATIONFORAPPROVL 编号： MODELNO ATN1608CHIP2440天线 规格： SPECIFICATIONS： 1.6*0.8*0.8mm 日期： DATE： 2023.03.23 深圳市艾特诺通讯设备有限公司 ATN 客户 CUSTOMER 制作 make 审核 examine 核准 Approver 结构 Structure 电子 Electronics 核准 Approver 地址：深圳市宝安区新安街道留仙二路美生创谷科技园夏谷504-505室 Address:504-505,XiaGu,Wonderfullifecreativevalley,Xinan,Baoan,ShenZhen. Tel（电话）：0755-29308863Fax（传真）：0755-29308861 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 2 Version：A2.0ATN-QD-PAS-0033 目录 Contents 封面Cover......1 目录contents......2 一、测试设备TestEquipment&Conditions......3 二、产品规格ProductSpecification......4 三、设计要求Designrequirement......4 四、产品性能参数Productperformanceparameters......5 五、测试数据报告TestDataReport......6 六、推荐焊接温度曲线图Thetemperatureprofileforsoldering......7 七、纸带编号尺寸大小Dimensionsofpapertaping......9 八、产品包装Productpackaging......10 发行/变更记录 发行/变更日期变更原因变更内容版本备注 2022.08.16新版发行新版发行A1.0 2023.03.23增加参考设计增加参考设计②A2.0 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 3 Version：A2.0ATN-QD-PAS-0033 一、测试设备TestEquipment&Conditions 1.1网络分析仪（NetworkAnalyzers） AgilentTechnologiesE5071B 1.2综合测试仪（CommunicationsTestSet） CMW500 1.33D暗室测试系统（3DChanberTestSystem） 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 4 Version：A2.0ATN-QD-PAS-0033 二、产品规格ProductSpecification 2.1、尺寸规格 2.2、储存条件Storageconditions 储存温度StorageTemperature 5°C～40°C 相对湿度relativehumidity 20-70% 储存期限Storagelife 6个月 三、参考设计Referencedesign ① 深圳市艾特诺通讯设备有限公司 SHENZHENATN COMMUNICATIONTECHNOLOGYCO.,LTD. Page 5 Version：A2.0ATN-QD-PAS-0033 ② 四、产品性能参数Productperformanceparameters Frequency2400-2480MHz VSRW<2.0 Radiationefficiency68% Peakgain 3.21dBi PolarizationLinear Impedance50 Ω 五 、测试数据报告TestDataReport 5.1S11 Parameter 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 6 Version：A2.0ATN-QD-PAS-0033 5.2增益和效率Gain&Efficiency Freq(MHz)Effi(%)Effi(dB)GaindBi) 240066.92-1.742.91 241069.87-1.563.05 242068.35-1.652.84 243072.35-1.413.00 244071.47-1.462.96 245074.2-1.33.21 246070.94-1.493.08 247065.84-1.812.74 248059.56-2.252.23 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 7 Version：A2.0ATN-QD-PAS-0033 5.3方向图Radiationpattern 六、推荐焊接温度曲线图Thetemperatureprofileforsoldering 6.1回流焊接（Re-flowsoldering） 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 8 Version：A2.0ATN-QD-PAS-0033 Pb~Sn焊接 Pb-Snsoldering 无铅焊接 Lead-freesoldering 尖峰温度 Peaktemperature 230°C~250°C240°C~260°C 预热时，请将焊接温度与元件表面温度之间的温差维持在T≤150°C。 Whileinpreheating,pleasekeepthetemperaturedifferencebetween solderingtemperatureandsurface 6.2波峰焊接（Wavesoldering） 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 9 Version：A2.0ATN-QD-PAS-0033 Pb~Sn焊接 Pb-Snsoldering 无铅焊接 Lead-freesoldering 尖峰温度 Peaktemperature 230°C~260°C240°C~270°C 预热时，请将焊接温度与元件表面温度之间的温差维持在T≤150°C。 Whileinpreheating,pleasekeepthetemperaturedifferencebetween solderingtemperatureandsurface 七、纸带编号尺寸大小Dimensionsofpapertaping 传送带的前后结构Structureofleaderpartandendpartofthecarrierpaper 深圳市艾特诺通讯设备有限公司 SHENZHENATNCOMMUNICATIONTECHNOLOGYCO.,LTD. Page 10 Version：A2.0ATN-QD-PAS-0033 八、产品包装Productpackaging 8.1卷盘尺寸ReelDimensions(unit:mm) 卷盘包装数量：4000pcs/卷 8.2纸箱包装 小包装数量：10卷 ThefirstpackageQuantity:10reels 大包装数量：6盒 ThesecondpackageQuantity:6cases

Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 1 of 35 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: TRUE WIRELESS STEREO BT EARPHONES Trade Mark: aigo Test Model: TU01 FCC ID: 2ASNB-TU01 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 Banwidth Test Result TestMode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 1.008 2401.478 2402.486 --- --- DH5 Ant1 2441 0.960 2440.529 2441.489 --- --- DH5 Ant1 2480 1.002 2479.493 2480.495 --- --- 2DH5 Ant1 2402 1.317 2401.331 2402.648 --- --- 2DH5 Ant1 2441 1.293 2440.361 2441.654 --- --- 2DH5 Ant1 2480 1.293 2479.358 2480.651 --- --- Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 2 of 35 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 3 of 35 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 4 of 35 2DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 5 of 35 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.88267 2401.5544 2402.4371 --- --- DH5 Ant1 2441 0.89186 2440.5568 2441.4486 --- --- DH5 Ant1 2480 0.89102 2479.5476 2480.4386 --- --- 2DH5 Ant1 2402 1.2056 2401.3948 2402.6004 --- --- 2DH5 Ant1 2441 1.1957 2440.3982 2441.5939 --- --- 2DH5 Ant1 2480 1.1993 2479.3974 2480.5967 --- --- Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 6 of 35 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 7 of 35 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 8 of 35 2DH5-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 9 of 35 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 -3.09 ≤30 PASS DH5 Ant1 2441 -2.51 ≤30 PASS DH5 Ant1 2480 -2.43 ≤30 PASS 2DH5 Ant1 2402 -2.42 ≤20.97 PASS 2DH5 Ant1 2441 -1.80 ≤20.97 PASS 2DH5 Ant1 2480 -1.75 ≤20.97 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 10 of 35 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 11 of 35 DH5-Ant1-2480-PASS 2DH5-Ant1-2402-PASS 2DH5-Ant1-2441-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 12 of 35 2DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 13 of 35 Appendix D: Carrier frequency separation Test Result TestMode Antenna Frequency[MHz] Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 1.158 ≥1.008 PASS 2DH5 Ant1 Hop 1.156 ≥0.878 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 14 of 35 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 15 of 35 Appendix E: Time of occupancy Test Result TestMode Antenna Frequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.884 100 0.288 ≤0.4 PASS 2DH5 Ant1 Hop 2.892 120 0.347 ≤0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 16 of 35 Test Graphs DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 17 of 35 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 18 of 35 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 Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 19 of 35 Test Graphs DH5-Ant1-Hop-PASS 2DH5-Ant1-Hop-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 20 of 35 Appendix G: Band edge measurements Test Result TestMode Antenna ChName Frequency[MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 -3.54 -49.77 ≤-23.54 PASS DH5 Ant1 High 2480 -2.89 -49.49 ≤-22.89 PASS DH5 Ant1 Low Hop_2402 -4.88 -50.4 ≤-24.88 PASS DH5 Ant1 High Hop_2480 -3.05 -49.79 ≤-23.05 PASS 2DH5 Ant1 Low 2402 -3.65 -50 ≤-23.65 PASS 2DH5 Ant1 High 2480 -2.96 -48.32 ≤-22.96 PASS 2DH5 Ant1 Low Hop_2402 -3.98 -49.89 ≤-23.98 PASS 2DH5 Ant1 High Hop_2480 -6.08 -49.33 ≤-26.08 PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 21 of 35 Test Graphs DH5-Ant1-2402-PASS DH5-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 22 of 35 DH5-Ant1-Hop_2402-PASS DH5-Ant1-Hop_2480-PASS 2DH5-Ant1-2402-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 23 of 35 2DH5-Ant1-2480-PASS 2DH5-Ant1-Hop_2402-PASS 2DH5-Ant1-Hop_2480-PASS Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 Report No.: TZ0002240802FRF01 Page 24 of 35 Appendix H: Conducted Spurious Emission Test Result TestMode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 2402 0~Reference -4.48 -4.48 --- PASS DH5 Ant1 2402 30~1000 -4.48 -63 ≤-24.48 PASS DH5 Ant1 2402 1000~26500 -4.48 -47.64 ≤-24.48 PASS DH5 Ant1 2441 0~Reference -3.69 -3.69 --- PASS DH5 Ant1 2441 30~1000 -3.69 -62.22 ≤-23.69 PASS DH5 Ant1 2441 1000~26500 -3.69 -44.38 ≤-23.69 PASS DH5 Ant1 2480 0~Refe…

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FCC TEST REPORT Test report On Behalf of Beijing EROS Technology Co.,Ltd For TRUE WIRELESS STEREO BT EARPHONES Model No.: TU01 FCC ID: 2ASNB-TU01 Prepared for : Beijing EROS Technology Co.,Ltd 1-7, 6 / F, Building 1, 76 Zhichun Road, Haidian District, Beijing, China 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: 2024/8/15 ~ 2024/8/27 Date of Report: 2024/8/28 Report Number: TZ0002240802FRF01 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.: TZ0002240802-BT Page 2 of 37 TEST RESULT CERTIFICATION Applicant’s name ................. : Beijing EROS Technology Co.,Ltd Address .................................. : 1-7, 6 / F, Building 1, 76 Zhichun Road, Haidian District, Beijing, China Manufacture's Name ............ : Beijing EROS Technology Co.,Ltd Address .................................. : 1-7, 6 / F, Building 1, 76 Zhichun Road, Haidian District, Beijing, China Product description Trade Mark ................................ : aigo Product name ............................ : TRUE WIRELESS STEREO BT EARPHONES Model and/or type reference . : TU01 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 ............. : 2024/8/15 ~ 2024/8/27 Date of Issue .......................................... : 2024/8/28 Test Result .............................................. : Pass Testing Engineer : (Allen Lai) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ0002240802-BT Page 3 of 37 Revision History Revision Issue Date Revisions Revised By 00 2024/8/28 Initial Issue Andy Zhang Report No.: TZ0002240802-BT Page 4 of 37 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 ......................................................... 16 5.6 Restricted Band Emission Limit ..........…

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Shenzhen Tongzhou Testing Co.,Ltd. FCC ID: 2ASNB-TU01 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: 2ASNB-TU01 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