1. Main Function: Visual + Doorbell + 2PCS IR LED + Auto Motion Detection + TF Card Slot + Video Recording + Photo Shooting + Leaving Message
2. LCD Screen: 3.0 inch HD TFT, resolution 960x240
3. Patented magnetic installation structure
4. Camera View Angle: 110 degrees
5. Auto Motion Detection: ON or OFF
6. When auto-detection is on, if somebody outside, then it records 10 seconds with a voice prompt
7. Support TF card up to 8GB, suggest 2GB (not included)
8. Zoom function
9. Power Source: 4xAA batteries, or extra-charged wireless charger optional
10. Fit for door thickness 35-105mm, door barrel diameter 12-55mm