Material: Panel:Aluminum Alloy Surface Finishing: Electroplated Lock dimension: 173mm(D)*72mm(L)* 22mm(H) Unlock Way: BLE APP, WiFi APP, Fingerprint,Mechanical Key,Card,Password Fingerprint Capacity: App Name:TTlock,Tuya Support System: Power Supply: 6V (4x AAA Batteries) Working Temperature: -35°C~55°C Mortise:self-locking deadbolt Waterproof Level: IP55 USB Back Up Power: yes Applicable For: Home/Office/Appartment