1. Simple unlocking and press to open operation. 2. The fingerprint collector features a semiconductor live fingerprint sensor for enhanced security. 3. Each time you unlock it, the device improves its pass rate through fingerprint stitching and self-learning recognition algorithms. 4. Fast identification and quick unlocking, providing efficiency and convenience. 5. USB charging interface allows compatibility with an appropriate brand data cable and power bank. Item Type: Lock Unlocking Mode: Pure Fingerprint Fingerprint Capacity: 20 Power Type: Lithium Battery (Built-In) Duration: 180 minutes of continuous use after charging for 2 hours, with ten unlocks per day Applicable Door Thickness: Less than or equal to 10mm/0.3in Colour: Silver Material: Metal Size: 34x34mm Package Contents: 1x Fingerprint lock 1x Data cable Only the above package content. Other products are not included. Note: Lighting and different displays may cause the color of the item to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.