Convenient Your Life—video intercom with your visitor. Built-in Wifi, no bridge required. View the history log of lock and unlock activity. 3D Face ID Recognition: The door lock utilizes 3D face recognition technology to provide secure access control. By analyzing unique facial features, it accurately identifies authorized individuals for convenient entry. 8-in-1 UNLOCK METHODS: 3D Face Recognition Unlock, Fingerprint Unlock, Mobile App Unlock, Password Unlock, RFID Card Unlock, Virtual Password Unlock, Password Unlock, Mechanical Key Unlock. Special Features: 3DFace ID + Camera + WIFI + Mobile App + Fingerprint + Password + Card + Mechanical Key SMART FINGERPRINT TO UNLOCK - No need to enter password to unlock, bring you more convenient life, Advanced biometric fingerprint technology, the lock can recognize 100 users and the recognition speed is 0.3 Display - 4 inch LCD display to live view visitor. Long lasting battery - 4200 mAh rechargeable battery for long life, runs upto 2 months depends on usage. Fits standard-sized doors of 30 to 100mm thickness CONTROL FROM ANY LOCATION WITH WI-FI BUILT IN: The Installation is simple. (Access control, real-time alert, and event record). You may lock, unlock. Allow your family, guests, or service members access by using a code, certain dates, or time intervals.