2AUCH-H2OAUDIOTRI PRO Multi-Sport Headphone

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO 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: 2AUCH-H2OAUDIO 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 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO 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

Label Location: FCC ID: 2AUCH-H2OAUDIO

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO 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: 2AUCH-H2OAUDIO 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: 2AUCH-H2OAUDIO 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 Channel Frequency (MHz) Measured Peak Output Power (dBm) GFSK 00 2402 0.47 39 2441 0.08 78 2480 0.64 π/4-DQPSK 00 2402 -0.91 39 2441 1.75 78 2480 -0.58 8-DPSK 00 2402 -0.57 39 2441 -1.25 78 2480 -0.23 Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 0.0 0.0 0.5 Tolerance ±(dB) 1.0 1.0 1.0 π/4-DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1.0 1.0 -1.0 Tolerance ±(dB) 1.0 1.0 1.0 8-DPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -1.0 -1.5 -0.5 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) GFSK 2402 1.0 3.58 2.28 3 2441 1.0 3.58 2.28 3 2480 1.5 4.08 2.56 3 π/4-DQPSK 2402 0.0 2.58 1.81 3 2441 2.0 4.58 2.87 3 2480 0.0 2.58 1.81 3 8-DPSK 2402 0.0 2.58 1.81 3 2441 -0.5 2.08 1.61 3 2480 0.5 3.08 2.03 3 The antenna gain of the EUT for BT is 2.58dBi (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.

2.4GHz 3216 Chip Antenna: RAN3216F6P2G45 ______________________________________________________________________________________________________ Application: WLAN, 802.11b/g, Bluetooth, etc... Features SMD, high reliability, ultra Impact, Omni-directional... Part number RAN 3216 - F6 (1) (2) (3) P 2G45 (4) (5) (1)Product Type Chip Antenna (2)Size Code 3.2x1.6mm (3)Type Code F6 (4)Packing Paper Tape (5)Frequency 2.45GHz Electrical Specification W orking Frequency Range 2400 ~2484 MHz Peak Gain 2.58 dBi (Typ.) Impedance 50 Ohm Return loss 10 dB ( Min) Polarization Linear Azimuth Beamwidth Omni-directional Operation Temperature(°C) -40 ~85°C The specification is defined on EVB. Dimension and Terminal Configuration Dimension (mm) No. Terminal Name L 3.15+-0.15 1 Feeding point W 1.55+-0.15 2 GND T 0.50+-0.10 A 0.35+-0.10 2.4GHz 3216 Chip Antenna: RAN3216F6P2G45 ______________________________________________________________________________________________________ Evaluation Board Reference PCB Dimension Antenna Layout Reference unit :mm Electrical Characteristics Return Loss & Radiation Return Loss Frequency (MHz) (dB) 2000 10 2092 23.5 215510 Radiation Return Loss 2.4GHz 3216 Chip Antenna: RAN3216F6P2G45 ______________________________________________________________________________________________________ Taping Specifications Reel and Taping Specification Reel Specification TYPE SIZE A ψB ψC ψD W ψM 3216 7” 5K/Reel 2.0±0.5 13.5±1.0 21±1.0 60±1.0 11.5±2.0 178±2.0 Tapping Specification Packaging Type A B W E F G H T ψ D P Paper Type 3216 1.90±0.20 3.50±0.20 8.0±0.20 1.75±0.10 3.5±0.05 4.0±0.10 2.0±0.05 0.75±0.10 +0.10 1.50 -0 4.0±0.1 2.4GHz 3216 Chip Antenna: RAN3216F6P2G45 ______________________________________________________________________________________________________ Reliability Table Test ItemProcedure Requirements Ceramic Type Remark (Reference) Electrical Characterization Fulfill the electrical specification User Spec. Thermal Shock 1. Preconditioning: 50 ± 10°C / 1 hr , then keep for 24 ± 1 hrs at room temp. 2. Initial measure: Spec: refer Initial spec. 3. Rapid change of temperature test: -30°C to +85°C; 100 cycles; 15 minutes at Lower category temperature; 15 minutes at Upper category temperature. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 107 Temperature Cycling 1. Initial measure: Spec: refer Initial spec. 2. 100 Cycles (-30°C to +85°C), Soak Mode=1 (2 Cycle/hours). 3. Measurement at 24 ± 2Hours after test condition. No Visible Damage. Fulfill the electrical specification. JESD22 JA104 High Temperature Exposure 1. Initial measure: Spec: refer Initial spec. 2. Unpowered; 500hours @ T=+85°C. 3. Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Low Temperature Storage 1. Initial measure: Spec: refer Initial spec. 2. Unpowered: 500hours @ T= -30°C. 3. Measurement at 24 ± 2 hours after test. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 108 Solderability (SMD Bottom Side) Dipping method: a. Temperature: 235 ± 5°C b. Dipping time: 3 ± 0.5s The solder should cover over 95% of the critical area of bottom side. IEC 60384-21/22 4.10 Soldering Heat Resistance (RSH) Preheating temperature: 150 ± 10°C. Preheating time: 1~2 min. Solder temperature: 260 ± 5°C. Dipping time: 5 ± 0.5s No Visible Damage.IEC 60384-21/22 4.10 Vibration5g's for 20 min., 12 cycles each of 3 orientations Note: Use 8"X5" PCB .031" thick 7 secure points on, one long side and 2 secure points at corners of opposite sides. Parts mounted within 2" from any secure point. Test from 10-2000 Hz. No Visible Damage.MIL-STD-202 Method 204 Mechanical Shock Three shocks in each direction shall be applied along the three mutually perpendicular axes of the test specimen (18 shocks) Peak value: 1,500g’s Duration: 0.5ms Velocity change: 15.4 ft/s Waveform: Half-sine No Visible Damage.MIL-STD-202 Method 213 Humidity Bias 1. Humidity: 85% R.H., Temperature: 85 ± 2 °C. 2. Time: 500 ± 24 hours. 3. Measurement at 24 ± 2hrs after test condition. No Visible Damage. Fulfill the electrical specification. MIL-STD-202 Method 106 2.4GHz 3216 Chip Antenna: RAN3216F6P2G45 ______________________________________________________________________________________________________ Revision History Revision Date Content 1 2020/7/20New issue Board Flex (SMD) 1. Mounting method: IR-Reflow. PCB Size (L:100 × W:40 × T:1.6mm) 2. Apply the load in direction of the arrow until bending reaches 2 mm. No Visible Damage.AEC-Q200 005 AdhesionForce of 1.8Kg for 60 seconds.No Visible Damage Magnification of 20X or greater may be employed for inspection of the mechanical integrity of the device body terminals and body/terminal junction. AEC-Q200 006 Physical Dimension Any applicable method using x10 magnification, micrometers, calipers, gauges, contour projectors, or other measuring equipment, capable of determining the actual specimen dimensions. In accordance with specification. JESD22 JB100

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 1 of 43 Appendix Test Data for BT(BDR/EDR) (Conducted Measurement) Product Name: TRI PRO Multi-Sport Headphone Trade Mark: H2O Audio Test Model: H2O Audio TRI PRO FCC ID: 2AUCH-H2OAUDIO 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: 20dB Emission Bandwidth Test Result TestMode Antenna Channel 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.939 2401.544 2402.483 --- --- 2441 0.942 2440.538 2441.480 --- --- 2480 0.942 2479.538 2480.480 --- --- 2DH5 Ant1 2402 1.338 2401.331 2402.669 --- --- 2441 1.317 2440.340 2441.657 --- --- 2480 1.320 2479.340 2480.660 --- --- 3DH5 Ant1 2402 1.290 2401.352 2402.642 --- --- 2441 1.302 2440.349 2441.651 --- --- 2480 1.278 2479.352 2480.630 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 2 of 43 Test Graphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 3 of 43 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 4 of 43 3DH5_Ant1_2441 3DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 5 of 43 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Channel OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.85662 2401.5704 2402.4270 --- --- 2441 0.86433 2440.5648 2441.4292 --- --- 2480 0.85601 2479.5681 2480.4242 --- --- 2DH5 Ant1 2402 1.1945 2401.4053 2402.5998 --- --- 2441 1.1843 2440.4085 2441.5928 --- --- 2480 1.1862 2479.4065 2480.5927 --- --- 3DH5 Ant1 2402 1.2008 2401.3937 2402.5945 --- --- 2441 1.2009 2440.3925 2441.5934 --- --- 2480 1.1953 2479.3959 2480.5912 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 6 of 43 Test Graphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 7 of 43 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 8 of 43 3DH5_Ant1_2441 3DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 9 of 43 Appendix C: Maximum Peak conducted output power Test Result TestMode Antenna Channel Result[dBm] Limit[dBm] Verdict DH5 Ant1 2402 0.47 ≤30 PASS 2441 0.08 ≤30 PASS 2480 0.64 ≤30 PASS 2DH5 Ant1 2402 -0.91 ≤20.97 PASS 2441 1.75 ≤20.97 PASS 2480 -0.58 ≤20.97 PASS 3DH5 Ant1 2402 -0.57 ≤20.97 PASS 2441 -1.25 ≤20.97 PASS 2480 -0.23 ≤20.97 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 10 of 43 Test Graphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 11 of 43 2DH5_Ant1_2402 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 12 of 43 3DH5_Ant1_2441 3DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 13 of 43 Appendix D: Carrier frequency separation Test Result TestMode Antenna Channel Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 1.344 ≥0.942 PASS 2DH5 Ant1 Hop 1.11 ≥0.892 PASS 3DH5 Ant1 Hop 0.966 ≥0.868 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 14 of 43 Test Graphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 15 of 43 Appendix E: Time of occupancy Test Result TestMode Antenna Channel BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.894 60 0.174 ≤0.4 PASS 2DH5 Ant1 Hop 2.882 110 0.317 ≤0.4 PASS 3DH5 Ant1 Hop 2.882 130 0.375 ≤0.4 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 16 of 43 Test Graphs DH5_Ant1_Hop 2DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 17 of 43 3DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 18 of 43 Appendix F: Number of hopping channels Test Result TestMode Antenna Channel 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: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 19 of 43 Test Graphs DH5_Ant1_Hop 2DH5_Ant1_Hop 3DH5_Ant1_Hop Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 20 of 43 Appendix G: Band edge measurements Test Result TestMode Antenna ChName Channel RefLevel [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 0.09 -50.76 ≤-19.91 PASS High 2480 0.24 -48.82 ≤-19.76 PASS Low Hop_2402 -3.88 -50.41 ≤-23.88 PASS High Hop_2480 -2.72 -48.59 ≤-22.72 PASS 2DH5 Ant1 Low 2402 -0.14 -50.3 ≤-20.14 PASS High 2480 -3.12 -48.98 ≤-23.12 PASS Low Hop_2402 -7.59 -50.56 ≤-27.59 PASS High Hop_2480 -1.96 -49.07 ≤-21.96 PASS 3DH5 Ant1 Low 2402 -2.98 -50.93 ≤-22.98 PASS High 2480 -2.77 -49.68 ≤-22.77 PASS Low Hop_2402 -5.76 -50.78 ≤-25.76 PASS High Hop_2480 -4.14 -49.52 ≤-24.14 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 21 of 43 Test Graphs DH5_Ant1_Low_2402 DH5_Ant1_High_2480 DH5_Ant1_Low_Hop_2402 DH5_Ant1_High_Hop_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 22 of 43 2DH5_Ant1_Low_2402 2DH5_Ant1_High_2480 2DH5_Ant1_Low_Hop_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 23 of 43 2DH5_Ant1_High_Hop_2480 3DH5_Ant1_Low_2402 3DH5_Ant1_High_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 28 of 43 DH5_Ant1_2480_30~1000 DH5_Ant1_2480_1000~26500 2DH5_Ant1_2402_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 29 of 43 2DH5_Ant1_2402_30~1000 2DH5_Ant1_2402_1000~26500 2DH5_Ant1_2441_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 30 of 43 2DH5_Ant1_2441_30~1000 2DH5_Ant1_2441_1000~26500 2DH5_Ant1_2480_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 31 of 43 2DH5_Ant1_2480_30~1000 2DH5_Ant1_2480_1000~26500 3DH5_Ant1_2402_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 32 of 43 3DH5_Ant1_2402_30~1000 3DH5_Ant1_2402_1000~26500 3DH5_Ant1_2441_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 33 of 43 3DH5_Ant1_2441_30~1000 3DH5_Ant1_2441_1000~26500 3DH5_Ant1_2480_0~Reference Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 34 of 43 3DH5_Ant1_2480_30~1000 3DH5_Ant1_2480_1000~26500 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 35 of 43 Appendix I: Duty Cycle Test Result TestMode Antenna Channel Transmission Duration [ms] Transmission Period [ms] Duty Cycle [%] 1/T[kHz] DH5 Ant1 2402 2.90 3.75 77.33 0.34 2441 2.90 3.75 77.33 0.34 2480 2.90 3.75 77.33 0.34 2DH5 Ant1 2402 2.89 3.75 77.07 0.35 2441 2.88 3.75 76.80 0.35 2480 2.88 3.75 76.80 0.35 3DH5 Ant1 2402 2.88 3.75 76.80 0.35 2441 2.88 3.75 76.80 0.35 2480 2.89 3.75 77.07 0.35 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 36 of 43 Test Graphs DH5_Ant1_2402 DH5_Ant1_2441 DH5_Ant1_2480 2DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 37 of 43 2DH5_Ant1_2441 2DH5_Ant1_2480 3DH5_Ant1_2402 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 38 of 43 3DH5_Ant1_2441 3DH5_Ant1_2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 39 of 43 Appendix J: Emissions in Restricted Bands Test Result TestMode Antenna ChName Channel Detector Freq(MHz) Result(dBm) Limit(dBm) Verdict DH5 Ant1 Low 2402 AV 2310.000 -49.01 ≤-41.20 PASS AV 2385.785 -48.6 ≤-41.20 PASS AV 2390.000 -48.71 ≤-41.20 PASS Peak 2310.000 -42.98 ≤-21.20 PASS Peak 2350.715 -38.39 ≤-21.20 PASS Peak 2390.000 -41.7 ≤-21.20 PASS High 2480 AV 2483.500 -47.88 ≤-41.20 PASS AV 2499.280 -47.84 ≤-41.20 PASS AV 2500.000 -47.96 ≤-41.20 PASS Peak 2483.500 -41.47 ≤-21.20 PASS Peak 2492.880 -38.29 ≤-21.20 PASS Peak 2500.000 -41.58 ≤-21.20 PASS 2DH5 Ant1 Low 2402 AV 2310.000 -48.99 ≤-41.20 PASS AV 2388.515 -48.57 ≤-41.20 PASS AV 2390.000 -48.75 ≤-41.20 PASS Peak 2310.000 -42.51 ≤-21.20 PASS Peak 2385.785 -38.94 ≤-21.20 PASS Peak 2390.000 -42.5 ≤-21.20 PASS High 2480 AV 2483.500 -47.84 ≤-41.20 PASS AV 2483.520 -47.84 ≤-41.20 PASS AV 2500.000 -47.99 ≤-41.20 PASS Peak 2483.500 -40.94 ≤-21.20 PASS Peak 2495.520 -37.8 ≤-21.20 PASS Peak 2500.000 -41.76 ≤-21.20 PASS 3DH5 Ant1 Low 2402 AV 2310.000 -48.96 ≤-41.20 PASS AV 2388.305 -48.6 ≤-41.20 PASS AV 2390.000 -48.71 ≤-41.20 PASS Peak 2310.000 -40.5 ≤-21.20 PASS Peak 2318.060 -38.38 ≤-21.20 PASS Peak 2390.000 -40.65 ≤-21.20 PASS High 2480 AV 2483.500 -47.75 ≤-41.20 PASS AV 2483.520 -47.75 ≤-41.20 PASS AV 2500.000 -47.88 ≤-41.20 PASS Peak 2483.500 -41.42 ≤-21.20 PASS Peak 2492.320 -38.17 ≤-21.20 PASS Peak 2500.000 -41.17 ≤-21.20 PASS Note： 1. The Antenna Gain is compensated in the graph with 2dBi and Antenna Gain which is Higher. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average detector in dBm. Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 40 of 43 Test Graphs DH5_Ant1_Low_2402_AV DH5_Ant1_Low_2402_Peak DH5_Ant1_High_2480_AV DH5_Ant1_High_2480_Peak Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 41 of 43 2DH5_Ant1_Low_2402_AV 2DH5_Ant1_Low_2402_Peak 2DH5_Ant1_High_2480_AV Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 42 of 43 2DH5_Ant1_High_2480_Peak 3DH5_Ant1_Low_2402_AV 3DH5_Ant1_Low_2402_Peak Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO Report No.: TZ230504359-E Page 43 of 43 3DH5_Ant1_High_2480_AV 3DH5_Ant1_High_2480_Peak

Report No.: TZ230504359-E Page 1 of 38 FCC TEST REPORT Test report On Behalf of Finnovate Group, LLC For TRI PRO Multi-Sport Headphone Model No: H2O Audio TRI PRO FCC ID: 2AUCH-H2OAUDIO Prepared for : Finnovate Group, LLC 124 E. Cliff St. Suite C-1, Solana Beach, California, 92075, United States 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: 2023/5/20 – 2023/5/28 Date of Report: 2023/5/29 Report Number: TZ230504359-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.: TZ230504359-E Page 2 of 38 TEST RESULT CERTIFICATION Applicant’s name ................. : Finnovate Group, LLC Address .................................. : 124 E. Cliff St. Suite C-1, Solana Beach, California, 92075, United States Manufacture's Name ............ : HONGBO Electronics (HK) Limited Address .................................. : ROOM A1, 6/F, YUN KEI COMMERCIAL, BUILDING, NO. 682 SHANGHAI STREET, KOWLOON, HONG KONG. Product description Trade Mark ............................. : H2O Audio Product name ........................... : TRI PRO Multi-Sport Headphone Model No ................................ : H2O Audio TRI PRO 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 ........... : 2023/5/20-2023/5/28 Date of Issue ......................................... : 2023/5/29 Test Result ............................................ : PASS Testing Engineer : (Nancy Li) Technical Manager : (Hugo Chen) Authorized Signatory : (Andy Zhang) Report No.: TZ230504359-E Page 3 of 38 Revision History Revision Issue Date Revisions Revised By 00 2023/5/29 Initial Issue Andy Zhang Report No.: TZ230504359-E Page 4 of 38 TABLE OF CONTENTS Description Page 1. GENERAL INFORMATION ................................................................................................................ 5 1.1. Description of Device (EUT) ................................................................................................................... 5 1.2 Support equipment List ................................................................................................................................ 5 1.3 External I/O Cable ........................................................................................................................................ 5 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 2. TEST METHODOLOGY/ ..................................................................................................................... 8 2.1 EUT Configuration ........................................................................................................................................ 8 2.2 EUT Exercise ................................................................................................................................................ 8 2.3 General Test Procedures ............................................................................................................................ 8 2.4. 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. SUMMARY OF TEST EQUIPMENT ............................................................................................... 11 6. MEASUREMENT RESULTS ............................................................................................................ 12 6.1 Peak Power ...................…

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Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO 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 Radiated Emission Below 1GHz Radiated Emission Above 1GHz Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2AUCH-H2OAUDIO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 2 Conducted Emission