Specification: Size: 76*40*13mm Weight: 106g Color: Black Material: Zinc alloy Product package: Fingerprint padlock*1 USB cable*1 [Fingerprint Unlock] Your finger is your key. Quick unlock, record up to 20 different fingerprints. [Sturdy & Portable] This mini fingerprint padlock design case is made of a metal shell with an aluminum alloy and stainless steel shell for excellent cut resistance. [Long-time Alarm & Low Voltage] The smart padlock is equipped with lower power consumption and long standby time. Fully rechargeable support 1 year standby time and can be unlocked more than 1000 times. [Widely Use] It is a portable smart box lock, the size of which makes it possible to take the lock with you wherever you go. The powerful and intelligent universal fingerprint lock is suitable for outdoor and indoor use, such as home, gym, gate, warehouse, cabinet, shed, suitcase, bag, box, bicycle, luggage, fence, garage, office, etc.