Padlock with a state of the art fingerprint sensor that can store up to 10 different fingerprints. The lock can be used up to 1000 times before it needs to be recharged. USB input / output: 5V 100 mA / 3. 7 V 150 ÃŽ¼A. Size: 28 x 60 x 15 mm. Charging time: 3 hours. Comes with a gift box with magnetic closure, made out of recycled paper.