This item is a fingerprint lock. It is made of material, it is sturdy and practical enough for long-term use. Perfect for home, office drawer use, or anywhere you want to hide ! USB charging design, which is convenient and practical. Features -Color:Silver -Material: ABS -Size: About 8X3.2X3cm/3.14X1.26X1.18in - This is a fingerprint lock which is made of for the long use. - Selected material with nice durability has the . - It can meet your home or office drawer use. - Practical fingerprint lock structure offers you convenient installation. - Fine workmanship ensures the practicality and durability. 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