Feature: 1. Semiconductor active fingerprint lock, unique biological red light recognition technology, makes fingerprint identification more accurate and safer. 2. It can replace most standard door locks, suitable for left opening and right opening doors (left or right opening is adjustable). 3. With emergency charging port, prevent power shortage. 4. Exquisite workmanship, fine texture, provides glossy and comfortable touch feeling. 5. Simple installation with screw, no need of wiring and driling, save time and effort. Specification: Item Type: Fingerprint Door Lock Material: Zinc Alloy Color: As picture shown Fingerprint Reader: Semiconductor Fingerprint Reader Number of Fingerprints: 20 Resolution: 500DPI Door Opening: Fingerprint, Key Supply Voltage: 6V Operating Current: 120mA Standby Current: 40uA FRR: 0.001% FAR: 0.001% Fingerprint Comparison: 1:Nn Low Voltage Alarm: 4.8V Operating Temperature: -10℃- 60℃ Relative Humidity: 20%-90% Backup Power Supply: USB Port, for Port Battery: 4 x AAA batteries (Not included) Door Thickness: 3.5-4.5cm/1.4-1.8in Lock Body Size 60 x 68mm/2.4 x 2.7in Door Hole: Single Hole Package List: 2 x Lock 1 x Lock Cyclinder 2 x Key 1 x Box 1 x Sheet Iron 1 x Installation Package Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.