SF520A 2.0 Million Pixels Wireless Anti-Theft Smart Video Doorbell with 3.5 inch Display Screen

1. Display: 3.5 inch LCD screen
2. Viewing angle: 120 degree wide angle
3. Power consumption: 0.5W
4. Power supply voltage: 5V
5. Power supply mode: 4 x AAA batteries (need to buy by yourself)
6. Scope of application: residences, villas, hotels
7. Image resolution: 2 million pixels
8. Lens type: Mini hidden camera
9. Cat head material: zinc alloy
10. Door hole diameter: 13-28mm
11. Applicable door thickness: 35-100mm