Smart Door Lock

LARGE CAPACITY: No cord and no professional are needed. It fits most doors that use lever door lock and is applicable to both left and right handle. SUPER SECURITY: Your fingerprint is unique, which guarantees the safety without a doubt. Taking advantage of technology of semiconductor and biological characteristics is adopted, which avoids the same fingerprint. What's more, made of durable Zinc Alloy material, its quality is reliable. QUICK UNLOCK: Ergonomic design, easy for you to unlock the door within 1 second by putting your fingerprint on it. It will lock for you automatically, keeping you and your home secure all the time. SIMPLE INSTALLATION: No power cords or professionals are needed. It is suitable for most doors that use lever door locks, and is suitable for left and right handles. ENERGY SAVING: No more worry about pollution or wasting money. With built-in lithium battery, it can be used for a year after being fully charged for 30 minutes.(The charging interface is