1. Easy unlocking and Press open. and it is simple to operate. 2. Fingerprint collector uses semiconductor live fingerprint sensor, high security. 3. Every time you unlock it, you will continue to improve the pass rate through fingerprint stitching and image recognition self-learning algorithms. 4. Speed identification, quick unlock, and it is efficient and convenient. 5. USB charging interface, it can be with an for android data cable and mobile power bank. Item Type: Lock Unlocking Mode: Pure Fingerprint Fingerprint Capacity: 20 Power Type: Lithium Battery (Built-In) Duration: 180 of Continuous Use after Charging for 2 Hours, Unlocking Ten a Day Applicable Door Thickness: Less than or equal to 10mm/0.3in colour:Silver material:metal size:34x34mm Package Contents: 1x Fingerprint lock 1xData cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.