Quantity: One Piece Color: Silver Specification: 30mm Fingerprint Unlock: 20 sets of fingerprints can be memorized (including 2 administrators and 18 ordinary users). Support 360 fingerprint recognition. The unlock speed does not use more than 0.5 seconds. Use fingerprint to unlock, no key or password needed, greatly improving personal security and property security. Ultra-long standby mode and USB charging: Built-in rechargeable lithium battery, can work for 6 months when fully charged. It has a low battery reminder function and comes with a USB cable for charging, so you don't have to worry about running out of battery. Anti-theft Security Protection: Anti-theft: The lock case fingerprint is made of zinc alloy and the lock lever is made of stainless steel which is corrosion and wear resistant. Protect valuables in closets and drawers from theft Wide range of applications: perfect for personal drawers, wardrobes, shoe cabinets, office cabinets, newspaper boxes, metal cabinets , wooden cabinets, tool boxes, mailboxes, etc. At home or in the office, at the gym, at the pool, at school, etc.