Contact: ( Phone number appears when clicking the contact button ) The smart lock is made of high-quality aluminum sheets, resistant to rust, water, dust, and harsh weather conditions. A smart door lock that can be connected via Bluetooth and controlled via the TTLOCK app. It runs on AA dry batteries and can last. Possibility to power the lock via USB in emergencies. Low power alert. The smart lock can be put in disable mode, where the lock is always open during occasions. Contact: ( Phone number appears when clicking the contact button ) #smart_lock #fingerprint_lock #smart_door_lock #smart_handle #smart_lock #smart_locks #fingerprint_locks #electronic_lock #apartment_lock #aluminum_door_lock #smartlock #exterior_door_lock ##electronic_lock #digital_lock #apartment_lock #camera_lock #smart_locks #smart_locks #smart_lock #fingerprint_lock #smart_aluminum_lock