M4 720P Smart WIFI Ultra Low Power Video PIR Visual Doorbell with 3 Battery Slots,Support Mobile Phone Remote Monitoring & Night Vision & 166 Degree Wide-angle Camera Lens

1. PIR Motion Sensor
2. Infrared Ledx6
3. Light Sensor
4. 166 Degree HD Camera
5. Microphone
6. Push Button
7. Led Indicator
8. Speaker
9. AC 8V - 24V Power Interface
10. Reset Button
11. Micro USB Port (Battery Charging )
12. Battery Door