B2pro-Tuya App Biometric Smart Door Lock With Camera,with 4585 mortise,Electric Fingerprint Door Lock Security Intelligent Lock for Hotel Apartment

Product Features: 1. Fit Door Thickness: 38-55mm 2. Suitable Door Type：Steel Door,Wooden Door,Stainless Stell Door 3. Unlock way:TUYA APP( WIFI Connection),M1 Card, Fingerprint, Passcode, key. 4. Fingerprints of the elderly and children can also be added smoothly 5. Low battery reminder and USB power supply function 6.Battery Type: DC6V:4pcs AA alkaline batteries(Not included; customer must purchase separately.)