Multiple Unlock Modes: Supports 3D Facial Recognition, Fingerprint, IC Card, Password, Tuya App, and Emergency Mechanical Key. Built-in HD Display: Features a color screen for user management, checking access logs, and real-time status monitoring. Advanced Biometrics: Equipped with a high-speed semiconductor fingerprint sensor and dual-camera facial scanning for high security. Drill-Free Installation: Specially designed for frameless glass doors; requires no drilling or complicated wiring. Smart App Integration: Powered by Tuya Smart / Smart Life for remote unlocking, temporary password generation, and push notifications. Emergency Power: Powered by AA batteries with a built-in USB Type-C emergency power port in case of battery failure. Door Compatibility: Suitable for single or double glass doors (10mm - 12mm thickness).