describe: Easy to install: Smart cabinet locks are easy to install. No drilling required and no damage to the cabinet. Moreover, the smart drawer lock is easy to operate and has automatic rebound and automatic locking functions. Convenient and fast: Child safety locks for cabinets and drawers have independent reset systems that can recognize all cards (no need to worry about losing cards). Help is quick and easy to use. No need to write on the card No activation required: Master Card/Keychain is set to locked status, no programming or activation is required. You only need to install 4 AA alkaline batteries to use the lock Long service life: The battery life of the drawer lock anti-baby smart cabinet lock is about 100,000 times, and the static power consumption is less than 5A. Powered by 4 AA alkaline batteries, can be used for more than 12 months High-Quality Materials: Stainless steel latch and ABS plastic lock body, durable and corrosion-resistant. One master card can be set to open multiple locks, so you only need to keep one key to control them all Package contents: 1 piece smart lock