W3 150 Degree Wide Angle 1080P Smart Doorbell Set 1. Sensor device: 1080P CMOS sensor 2. Lens: 4G wide-angle 2.2mm lens 3. Viewing angle: 120 degrees horizontally, 150 degrees diagonally 4. CMOS performance: support automatic white balance, automatic gain control, automatic backlight compensation 5. Standby time: about 6 months (10 wake-ups per day, 30S each time) 6. Day and night conversion: automatic switching of dual filters 7. Infrared distance: 850nm infrared, effective distance 5m 8. Matching Dingdong machine: built-in 433.92MHZ RD standard communication protocol 9. Network configuration method: QR code distribution network + sound wave + wifi fast connection 10. PIR human detection: support PIR detection wake-up 11. Standby power consumption 220uA, working power consumption 1.5W 12. WiFi: 2.4GHz 13. Support full two-way real-time call, remote wake-up. 14. Power supply: two 18650 batteries 4400mAH (built-in) 15. Mobile client: support ios11.0, Android 6.0 and above