Appendix D Plots of SAR Test Result

FCC ID: 2AFIB-YAS1817

RF Exposure Info

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FCCID_3349957

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF WiFi 802.11b -Body Rear CH11 ......................................................................................................... 2 WiFi 802.11b -Body Right CH6 .......................................................................................................... 3 WiFi 802.11b -Body Right CH11 ........................................................................................................ 4 WiFi 802.11b -Body Bottom CH11 .................................................................................................... 5 WiFi 802.11b -Body Right CH6 repeat ............................................................................................. 6 Wifi 802.11a - Body Rear CH40.......................................................................................................... 7 Wifi 802.11a - Body Rear CH165 ....................................................................................................... 8 Wifi 802.11a - Body Right CH36 ........................................................................................................ 9 Wifi 802.11a - Body Right CH40 ...................................................................................................... 10 Wifi 802.11a - Body Right CH157 .....................................................................................................11 Wifi 802.11a - Body Right CH165 .................................................................................................... 12 Wifi 802.11a - Body Bottom CH40................................................................................................... 13 Wifi 802.11a - Body Bottom CH165 ................................................................................................ 14 Wifi 802.11a - Body Right CH36 repeat ......................................................................................... 15 Wifi 802.11a - Body Right CH157 repeat ....................................................................................... 16 Page 1 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/8/2017 WiFi 802.11b -Body Rear CH11 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11b (0); Communication System Band: ISM 2.4GHz Band; Frequency: 2462 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2462 MHz; σ = 1.966 S/m; εr = 51.784; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(7.07, 7.07, 7.07); Calibrated: 7/27/2016; • Sensor-Surface: 2mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WiFi/Body Bottom CH11/Area Scan (9x10x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.320 W/kg WiFi/Body Bottom CH11/Zoom Scan (7x7x5)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 4.627 V/m; Power Drift = 0.02 dB Peak SAR (extrapolated) = 0.526 W/kg SAR(1 g) = 0.263 W/kg; SAR(10 g) = 0.126 W/kg Maximum value of SAR (measured) = 0.381 W/kg 0 dB = 0.381 W/kg = -4.19 dBW/kg Page 2 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/8/2017 WiFi 802.11b -Body Right CH6 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11b (0); Communication System Band: ISM 2.4GHz Band; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.942 S/m; εr = 51.839; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(7.07, 7.07, 7.07); Calibrated: 7/27/2016; • Sensor-Surface: 2mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WiFi/Body Right CH6/Area Scan (9x9x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.880 W/kg WiFi/Body Right CH6/Zoom Scan (7x7x5)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 22.09 V/m; Power Drift = -0.03 dB Peak SAR (extrapolated) = 2.71 W/kg SAR(1 g) = 1.03 W/kg; SAR(10 g) = 0.364 W/kg Maximum value of SAR (measured) = 1.80 W/kg 0 dB = 1.80 W/kg = 2.55 dBW/kg Page 3 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/8/2017 WiFi 802.11b -Body Right CH11 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11b (0); Communication System Band: ISM 2.4GHz Band; Frequency: 2462 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2462 MHz; σ = 1.966 S/m; εr = 51.784; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(7.07, 7.07, 7.07); Calibrated: 7/27/2016; • Sensor-Surface: 2mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WiFi/Body Right CH11/Area Scan (9x9x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 1.02 W/kg WiFi/Body Right CH11/Zoom Scan (7x7x5)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 23.08 V/m; Power Drift = -0.05 dB Peak SAR (extrapolated) = 2.41 W/kg SAR(1 g) = 0.927 W/kg; SAR(10 g) = 0.324 W/kg Maximum value of SAR (measured) = 1.50 W/kg 0 dB = 1.50 W/kg = 1.76 dBW/kg Page 4 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/8/2017 WiFi 802.11b -Body Bottom CH11 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11b (0); Communication System Band: ISM 2.4GHz Band; Frequency: 2462 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2462 MHz; σ = 1.966 S/m; εr = 51.784; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(7.07, 7.07, 7.07); Calibrated: 7/27/2016; • Sensor-Surface: 2mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WiFi/Body Bottom CH11/Area Scan (10x11x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.361 W/kg WiFi/Body Bottom CH11/Zoom Scan (7x7x5)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 8.131 V/m; Power Drift = 0.11 dB Peak SAR (extrapolated) = 0.548 W/kg SAR(1 g) = 0.251 W/kg; SAR(10 g) = 0.120 W/kg Maximum value of SAR (measured) = 0.370 W/kg 0 dB = 0.370 W/kg = -4.32 dBW/kg Page 5 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/8/2017 WiFi 802.11b -Body Right CH6 repeat DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11b (0); Communication System Band: ISM 2.4GHz Band; Frequency: 2437 MHz;Duty Cycle: 1:1 Medium parameters used: f = 2437 MHz; σ = 1.942 S/m; εr = 51.839; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(7.07, 7.07, 7.07); Calibrated: 7/27/2016; • Sensor-Surface: 2mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WiFi/Body Right CH6 repeat/Area Scan (9x9x1): Measurement grid: dx=12mm, dy=12mm Maximum value of SAR (measured) = 0.816 W/kg WiFi/Body Right CH6 repeat/Zoom Scan (7x7x5)/Cube 0: Measurement grid: dx=5mm, dy=5mm, dz=5mm Reference Value = 20.97 V/m; Power Drift = 0.12 dB Peak SAR (extrapolated) = 2.66 W/kg SAR(1 g) = 1.03 W/kg; SAR(10 g) = 0.362 W/kg Maximum value of SAR (measured) = 1.82 W/kg 0 dB = 1.82 W/kg = 2.60 dBW/kg Page 6 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Rear CH40 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band I; Frequency: 5200 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5200 MHz; σ = 5.234 S/m; εr = 48.689; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.77, 4.77, 4.77); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Rear CH40/Area Scan (9x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.176 W/kg WIFI Chain0/IEEE802.11a Body Rear CH40/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 1.211 V/m; Power Drift = 0.08 dB Peak SAR (extrapolated) = 0.460 W/kg SAR(1 g) = 0.104 W/kg; SAR(10 g) = 0.022 W/kg Maximum value of SAR (measured) = 0.299 W/kg 0 dB = 0.299 W/kg = -5.24 dBW/kg Page 7 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Rear CH165 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band IV; Frequency: 5825 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5825 MHz; σ = 6.003 S/m; εr = 47.969; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.34, 4.34, 4.34); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Rear CH165/Area Scan (9x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.173 W/kg WIFI Chain0/IEEE802.11a Body Rear CH165/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 0.9512 V/m; Power Drift = -0.05 dB Peak SAR (extrapolated) = 0.505 W/kg SAR(1 g) = 0.097 W/kg; SAR(10 g) = 0.026 W/kg Maximum value of SAR (measured) = 0.324 W/kg 0 dB = 0.324 W/kg = -4.89 dBW/kg Page 8 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH36 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band I; Frequency: 5180 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5180 MHz; σ = 5.284 S/m; εr = 48.607; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.77, 4.77, 4.77); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH36/Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 1.20 W/kg WIFI Chain0/IEEE802.11a Body Right CH36/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 12.65 V/m; Power Drift = 0.04 dB Peak SAR (extrapolated) = 5.59 W/kg SAR(1 g) = 0.984 W/kg; SAR(10 g) = 0.218 W/kg Maximum value of SAR (measured) = 2.63 W/kg 0 dB = 2.63 W/kg = 4.20 dBW/kg Page 9 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH40 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band I; Frequency: 5200 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5200 MHz; σ = 5.234 S/m; εr = 48.689; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.77, 4.77, 4.77); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH40 /Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 1.61 W/kg WIFI Chain0/IEEE802.11a Body Right CH40 /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 14.59 V/m; Power Drift = 0.14 dB Peak SAR (extrapolated) = 5.71 W/kg SAR(1 g) = 0.941 W/kg; SAR(10 g) = 0.216 W/kg Maximum value of SAR (measured) = 2.62 W/kg 0 dB = 2.62 W/kg = 4.18 dBW/kg Page 10 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH157 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band IV; Frequency: 5785 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5785 MHz; σ = 6.055 S/m; εr = 47.434; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.34, 4.34, 4.34); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH157 /Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 2.53 W/kg WIFI Chain0/IEEE802.11a Body Right CH157 /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 19.23 V/m; Power Drift = -0.16 dB Peak SAR (extrapolated) = 7.45 W/kg SAR(1 g) = 1.04 W/kg; SAR(10 g) = 0.320 W/kg Maximum value of SAR (measured) = 3.35 W/kg 0 dB = 3.35 W/kg = 5.25 dBW/kg Page 11 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH165 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band IV; Frequency: 5825 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5825 MHz; σ = 6.003 S/m; εr = 47.969; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.34, 4.34, 4.34); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH165 /Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 2.13 W/kg WIFI Chain0/IEEE802.11a Body Right CH165 /Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 17.19 V/m; Power Drift = 0.19 dB Peak SAR (extrapolated) = 6.47 W/kg SAR(1 g) = 0.961 W/kg; SAR(10 g) = 0.277 W/kg Maximum value of SAR (measured) = 2.68 W/kg 0 dB = 2.68 W/kg = 4.28 dBW/kg Page 12 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Bottom CH40 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band I; Frequency: 5200 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5200 MHz; σ = 5.234 S/m; εr = 48.689; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.77, 4.77, 4.77); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Bottom CH40/Area Scan (9x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.468 W/kg WIFI Chain0/IEEE802.11a Body Bottom CH40/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 3.154 V/m; Power Drift = -0.03 dB Peak SAR (extrapolated) = 1.31 W/kg SAR(1 g) = 0.234 W/kg; SAR(10 g) = 0.062 W/kg Maximum value of SAR (measured) = 0.706 W/kg 0 dB = 0.706 W/kg = -1.51 dBW/kg Page 13 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Bottom CH165 DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band IV; Frequency: 5825 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5825 MHz; σ = 6.003 S/m; εr = 47.969; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.34, 4.34, 4.34); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Bottom CH165/Area Scan (9x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 0.773 W/kg WIFI Chain0/IEEE802.11a Body Bottom CH165/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 1.122 V/m; Power Drift = 0.11 dB Peak SAR (extrapolated) = 1.58 W/kg SAR(1 g) = 0.241 W/kg; SAR(10 g) = 0.064 W/kg Maximum value of SAR (measured) = 0.746 W/kg 0 dB = 0.746 W/kg = -1.27 dBW/kg Page 14 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH36 repeat DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band I; Frequency: 5180 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5180 MHz; σ = 5.284 S/m; εr = 48.607; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.77, 4.77, 4.77); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH36 repeat/Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 1.12 W/kg WIFI Chain0/IEEE802.11a Body Right CH36 repeat/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 13.01 V/m; Power Drift = 0.05 dB Peak SAR (extrapolated) = 5.58 W/kg SAR(1 g) = 0.988 W/kg; SAR(10 g) = 0.221 W/kg Maximum value of SAR (measured) = 3.02 W/kg 0 dB = 3.02 W/kg = 4.80 dBW/kg Page 15 of 16

Compliance Certification Services（KunShan） Inc. Date of Issue: March 13, 2017 Report No .: C170227R01-SF Test Laboratory: Compliance Certification Services Inc. Date: 3/9/2017 Wifi 802.11a - Body Right CH157 repeat DUT: YI 4K+ Action Camera; Type: YAS.1817; Serial: N/A Communication System: UID 0, IEEE 802.11 a (0); Communication System Band: 5G Band IV; Frequency: 5785 MHz;Duty Cycle: 1:1 Medium parameters used: f = 5785 MHz; σ = 6.055 S/m; εr = 47.434; ρ = 1000 kg/m3 Room Ambient Temperature: 22°C; Liquid Temperature: 21.5°C Phantom section: Flat Section Measurement Standard: DASY5 (IEEE/IEC/ANSI C63.19-2007) DASY Configuration: • Probe: EX3DV4 - SN3798; ConvF(4.34, 4.34, 4.34); Calibrated: 7/27/2016; • Sensor-Surface: 1.4mm (Mechanical Surface Detection) • Electronics: DAE4 Sn1245; Calibrated: 7/26/2016 • Phantom: ELI v4.0; Type: QDOVA001BB; Serial: TP:xxxx • DASY52 52.8.8(1222); • SEMCAD X Version 14.6.10 (7331) WIFI Chain0/IEEE802.11a Body Right CH157 repeat/Area Scan (13x13x1): Measurement grid: dx=10mm, dy=10mm Maximum value of SAR (measured) = 2.55 W/kg WIFI Chain0/IEEE802.11a Body Right CH157 repeat/Zoom Scan (7x7x7)/Cube 0: Measurement grid: dx=4mm, dy=4mm, dz=1.4mm Reference Value = 18.72 V/m; Power Drift = 0.14 dB Peak SAR (extrapolated) = 7.32 W/kg SAR(1 g) = 1.06 W/kg; SAR(10 g) = 0.317 W/kg Maximum value of SAR (measured) = 3.33 W/kg 0 dB = 3.33 W/kg = 5.22 dBW/kg Page 16 of 16


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