B16 Tuya Bluetooth Smart Door Lock

Model:  B16
APP:   Tuya
Wireless protocol:   Bluetooth (WiFi enable with gateway)
Ways to Unlock:   Key/ MF Card/ Passcode/ Fingerprint/ APP
(Work with gateway: Google/Amazon speaker voice control !!)
Material:   Aluminum Alloy
Color:   Silver/ Black
Product Size:   Lock: 261*146*24mm
Gateway: 65*65*18.5mm"
Fit Door Thickness:   35~50mm
Power supply:   4 x AA Batteries (12 month)
Application:   Residential, Apartment, Hotel