1. Unlocking Methods:Both the elderly and children can use it, targeting different scenes and groups of people. Quick unlocking is available in multiple ways to use. 3. Normally Open Mode: Normally open mode, accessible at any time. It can be switched to the normally open mode, and can be opened directly without verification, making it convenient for different scenarios to use. Press the handle normally open button for 1 second to switch to normally open mode. 4. Emergency Charging Port and Backup Key: When the battery is severely low or completely depleted, don't worry. You can use the backup key to open the door and come with a USB-C charging port. It can also be connected to a mobile power source for temporary power supply. The door lock adopts a free handle design, which can prevent malicious violence from damaging the lock body and internal parts. The handle can be interchanged left and right; 2. Smartphone App: Easily achieve intelligent life with home connectivity. User management - Add, delete users, change permissions; User password management - time setting, deletion, and viewing status; Control the unlocking record at all times, and remotely view the lock history through the mobile app; No need for internet connection, remote password sending to relatives and friends to unlock. 5. Anti-peeping Design: Fake password anti peeping design, input any password before and after the correct password, and only need to continuously input the correct password in the middle to open the door, effectively ensuring the personal safety of you and your family. High quality aluminum alloy lock head with sturdy structure to prevent illegal unlocking. Strong load-bearing capacity; Thickening and hardening, locking design to prevent external damage from others., Weight: 1.56858899413 Pounds, Manufacturer: Yoeruers