5-in-1 Unlocking: Supports Fingerprint, Passcode, IC Card, Emergency Mechanical Key, and Tuya App/Smart Life App control. Biometric Technology: Features a 360° semiconductor fingerprint sensor for rapid recognition (under 0.5 seconds). Smart App Management: Manage users, check unlock records, and generate temporary passwords remotely via the Tuya ecosystem. Universal Compatibility: Designed to fit standard door thicknesses (35-55mm) and works with both left and right-handed door swings. Emergency Power: Equipped with a hidden USB backup power port to prevent lockouts if the batteries die. Virtual Password: Supports "anti-peeping" codes—enter random numbers before or after your real code to maintain privacy.