TTLOCK Bluetooth Fingerprint Lock Economic Type Home Office Lock Easy Installation

color:  Black 
Unlock method: Bluetooth App, M1 Card, Pass code, Fingerprint, Wristband or key
App name: TT lock or Tuya app
Communication: Bluetooth 4.0 above
Support system: IOS7.0 or Android 4.4 or above
Batteries life: 10000 times normal open( 12 months)
Power supply: DC6V, 4pcs alkaline batteries
Unlock time: 1-1.5 seconds
Support remote passcode change
No need front reception and save labor cost
Available for WIFI router for remote management(optional)