For communication and order: ( Phone number appears when clicking the contact button ) The smart door lock provides you with protection and security. Goodbye to the key. The lock works with fingerprint, PIN code, and card. PIN code (99 PIN codes) Card (up to 50 cards), and the device comes with 2 cards. Unlock with PIN code Unlock with backup key Control via TTLock app For communication and order: ( Phone number appears when clicking the contact button ) #smart_lock #smart_door_lock #smart_lock #smart_lock #smart_door_handle #the_smart_lock #smart_door_lock #electronic_lock #electronic_locks #smart_lock_apartment_door #smart_lock_exterior_door #smart_lock