1) Tuya Smart Lock Technology. Conbines 4 keyless entry methods into 1 smart door lock, Tuya app, FingerPrint, Passcode, 1 time used passcode. Highly accurate fingerprint recognition, unlock the door within 0.5 seconds, and store up to 20 unique fingerprints. 2) Convenience & Wire free design and rechargable battery long standby low battery notification, emergency power supply, no worry about out of battery and lock outside.Share 1-time passcode with your friends or visitors, and you can also cancel or withdraw it if you want, very convenient. 3) Powerful Mobile Phone APP Function: You can use the mobile phone APP to change the password and fingerprint. When you are not at home, you can also generate a 1-time password for the nanny or other visitors as you like. 4) Modern Simple Design. The lock made of aluminum alloy material and streamline design, intuitive LED touch-pan make it more luxury and fashionable. Smooth feel and suitable size, easily handle by olds and kids too. Can be used for both left and right direction. 5) Easy Installation. Within minutes you can swap out your basic lock for our . No need to open new holes. The wire free technology makes installation quickly and easily, also security. All it need is just a small screwdriver, about 15 minutes you can install a smart lock for your home or office., Manufacturer: DMETE