Introducing a new product that offers five different ways to unlock: fingerprint, password, IC card, mechanical key, and app. The lock is made of carved alloy, which is strong enough to protect your home. It also features automatic locking technology and an indoor double lock knob for added security. In case of lost power, the lock has an emergency power supply and a rechargeable lithium battery that can last for 3-6 months on a full charge. The lock also has an English voice, a menu, and an infrared sensor camera. It can be used on various doors, including wooden, stainless steel, bronze, double, and old-fashioned security doors. The lock is also left and right-open compatible and can be monitored using the Usmartgo app.