Upgrade the security of your home with this modern smart security door lock. This unit is suitable for various door types such as steel door, wooden door, and brass door. It offers multiple ways to unlock, including 3D infrared face recognition, fingerprint, password, and IC card. With its built-in peephole and photo sending function to the mobile app, you can monitor who is at your door even when you are not at home. The lock features a polished finish and special features such as a biometric, key, and keypad function. The unit is made of high-quality aluminum and is powered by a built-in rechargeable lithium battery.