Offers 3 unlock options, fingerprint unlock, app unlock and key unlock. Its fast 3D fingerprint sensor store up to 20 different fingerprint and unlocks in only 1 second, giving you and your family easy access. Smart lock adds modern tech to your home while maintaiing its aesthetics, with , you can manage all the users, fingerprints and set the auto lock and view the access record, keeps your home secure. Could connect to a gateway for remote control. ( gateway not includes) The fingerprint door lock looks like a standard door knob, its minimal design fits your style and most doors with thickness within 35-55 mm. Handy installation with a long & thin screwdriver no need to extra drill and hire locksmith Power by 4 AAA batteries (not incluede) with long battery life and low battery remind, equipped with usb port and type C usb for emergency charge. Temporary password function: the mobile APP generates a remote password for the guest to unlock the door, Manufacturer: MOOILKO