This is a premium security fingerprint lock. It is made of , which can withstand the long-term use. Perfect for drawer use! ABS material, which has the good durability, ensures the steady work performance. Features -Color:Silver -Material: ABS -Size: About 8X3.2X3cm/3.14X1.26X1.18in - and premium, this fingerprint lock has the good durability and ensures the steady work performance. - Unique , very convenient and practical to use. - Perfect for home or office drawer use. - Simple structure offers you the convenient installation. - Suitable for drawer/filing cabinet/shoe cabinet/messenger box/safe box. Specification Resolution: 508DPI Fingerprint input: 20 Working temperature: -20 degree centigrade~+70 degree centigrade Working Humidity: 40%RH-85%RH( ) :<1% FAR:<0.0001% Recognition time: &lt;300ms Charging current: 5V/1000MA Unlock working current: 100MA No motor working current: 3MA Standby current: 35UA Antistatic grade: +/-12kV air, +/-8kV contact Battery: 3.7V 210mAh Unlock: Fingerprint unlocks Motor: N20 motor USB interface: Micro USB 5V 0.5A (emergency + charging) Package list: 1 x drawer lock