3D Face & Palm Vein Biometric Unlock.Adopts advanced 3D facial recognition and palm vein scanning, high security, fast unlock, no need to touch the lock.Full Auto Lock & Hands-Free Operation.Fully automatic lock body, auto locks after closing door. Hands-free entry, super convenient for daily home use.WiFi Remote Access & Door Viewer.Built-in door viewer, supports phone remote control and unlock, check visitors anytime anywhere via mobile device.Two-Way Audio Video Intercom.Equipped with real-time video intercom function, talk and see visitors remotely, enhance home safety and privacy.Multi-Mode Unlock for Home Use.Supports face, palm vein, password, fingerprint and remote unlock. Perfect for residential front door security.