Feature: 1. Highly Smart: Combination lock adopts Bluetooth technology and supports fingerprint, password and APP to unlock the door in multiple ways. 2. Safe and Reliable: The innovative spherical lock body design prevents brute force cracking and keeps you and your family safe. 3. Easy Control: Controlled by an APP, fingerprint lock remotely opens and closes the door anytime, anywhere, making your life easier. 4. Durable Construction: Smart password lock is made of premium material, which is hardness, not easy to deform, sturdy and durable and has a long service life. 5. Easy Installation: The door fingerprint lock is designed to be easy to install, so you can easily and quickly install it, saving time and money on installation costs. Specification: Item Type: Fingerprint LockMaterial: Aluminum alloy + copper Battery Type: Alkaline Batteries (Ships without batteries) Battery Model: AAA batteries Number of Batteries: 3 Opening Method: For (Tuya) APP+fingerprint+password+key Fingerprint Capacity: 100 fingerprints Installation Time: No need to drill holes, no need to replace the lock body, installation time <5 minutes. Package List: 1 x Fingerprint Lock Cartridge2 x Keys2 x Accessories1 x Instruction Manual