* 4.5-inch HD screen supports visual intercom via APP.
* Premium aluminum alloy with CNC precision carving, stylish spray paint finishes.
* Fit Standard Door 1.6~4.7in Thickness, Compatible with Most Residential Front Door
* 0.3s Quick Fingerprint Recognition , Store Up to 250 User Fingerprints&Passwords&Cards
* Multiple unlock modes including finger vein / passcode / card / mechanical key / one-time password / remote password.