1080P WiFi Intelligent Round Button Video Doorbell, Support Infrared Motion Detection & Adaptive Rate & Two-way Intercom & Remote / PIR Wakeup(White).

1. Main control chip: Tuya programme. 
2. Lens: Full 3G1P ultra-wide-angle lens. 
3. Viewing angle: horizontal 100 degrees. 
4. Resolution: 1080P. 
5. CMOS performance: support automatic white balance, automatic gain control, automatic backlight compensation, digital wide dynamic. 
6. System: Lite OS. 
7. Standby time: about 5--10 months (PIR wakes up 10 times a day, 15S each time). 
8. Day and night switching: automatic switching of dual filters. 
9. Infrared distance: 850nm infrared, effective distance 5m. 
10. Network configuration method: one-key WIFI configuration + sound wave configuration. 
11. Audio coding standards: AAC and G.726. 
12. Frequency input/output: -38dB microphone/built-in 1 speaker. 
13. Recording method: manual remote wake-up recording, PIR alarm recording. 
14. WiFi: 2.4GHz. 
15. Network protocols: TCP/IP, HTTP, TCP, UDP, SMTP, DHCP, DNS, P2P. 
16. Passive human body infrared detection: support. 
17. Adaptive bit rate: support. 
18. Two-way intercom: support full-duplex real-time calls. 
19. Sleep time: 30s. 
20. Remote wake-up: Supported. 
21. PIR wake-up: support three kinds of sensitivity wake-up: high, medium and low. 
22. Cloud storage: optional 7-day cycle permanent free cloud storage. 
23. Mobile client: Ubell, iOS 10.0, Android 5.0 and above. 
24. Working temperature: -10-50 degrees Celsius. 
25. Working humidity: less than or equal to eighty percent RH.