5-in-1 Unlocking: Supports Fingerprint, Passcode, IC Card, Emergency Mechanical Key, and Tuya App mobile unlocking. Smart App Control: Manage users, check access logs, and generate temporary passwords remotely via the Tuya Smart / Smart Life app. Biometric Sensor: 360° semiconductor fingerprint recognition with a speed of <0.5 seconds. Virtual Password: Supports "Anti-peeping" codes (input random digits before or after your real code to maintain privacy). Emergency Power: Equipped with a USB emergency charging port in case the batteries die. Universal Compatibility: Reversible handle design suitable for both left and right-opening doors.