1. Unlocking method: WiFi remote unlocking (without additional gateway), fingerprint, password, magnetic card and mechanical key;2. Graffiti app management, remote unlocking + unlocking record reminder + temporary password3. Biometric fingerprint identification and quick unlocking;4. Mobile unlocking reminder to ensure the safety of family members;5. Various mortise sizes, suitable for 99% of doors, easy to install;6. Long battery life, with USB emergency power interface;7. The lock body has rich dimensions, which reduces the difficulty of installation;8. Door opening / latch direction: it can be modified according to the instructions in the package, or customer service to obtain video tutorials. The modification can be made within one minute9 minutes. Normally open door mode: after adjustment, the door can still remain open after being opened and will not be locked automatically.10. Eight popular languages, which can be switched freely, are equipped with corresponding language instructions