B1 Tuya Bluetooth Smart Door Lock

Model:  B1
APP:   Tuya
Wireless protocol:   Bluetooth (WiFi enable with gateway)
Ways to Unlock:   Key/ Card/ Passcode/ Fingerprint/ APP
Material:   Zinc Alloy
Color:   Black
Product Size:   178*65*26mm
Fit Door Thickness:   35~50mm
Power supply:   4 x AA Batteries (12 month)
Emergency power:   Micro USB Interface
Application:   Residential, Apartment, Hotel