Feature: 1. One Key, Many Locks: These RFID locks are programmable, allowing you to unlock as many cabinets as you need with one key (RFID card or fob). The key needs to be programmed into the lock and tested prior to installation. 2. Applicable Thickness: RFID cards can penetrate thicker boards (up to 1.5 inches) and fit doors up to 0 to 1.2 inches thick, perfect for cabinets, lockers, medical carts, data racks, safes. 3. Compact Size, Strong Mechanism: The latch and mortise are made of metal and are strong enough for cabinets. Open the closet door, but don't touch it. RFID card is portable and easy to store. 4. Low Battery Alarm, Automatic Unlock: Once the lock has been set up and programmed, it will indicate a low battery status as needed and emit a long beep when opened. After the long beep, the lock can be used approximately 15 times. When the batteries are too weak to operate, the door will open automatically, at which point the batteries must be replaced before the lock can be used again. 5. High Security: Provides security for your belongings. Improve the safety of children at home and prevent them from opening drawers or closet doors. The lock can be used with a USB power adapter (not included) instead of alkaline batteries. Specification: Item Type: Electronic Cabinet Lock Material: Stainless Steel, ABS Weight: Approx. 207g/7.3oz Use: Wardrobe Shoe Cabinet Lock Battery: Dry Cellx4, AAA (Not with Battery Delivery). Package List: 1 x Lock (Battery Not Included) 3 x Accessories 9 x Screws 1 x White Card 1 x Keychain Card Note: Manual measurement please allow some error.