Fingerprint unlock: Never lose your key again! Your finger is the key, Also do not have to worry about the password is copied or cracked. One lock support max to 10 fingerfint. Please record the administrator fingerprint with 360 degree angle so that it will record precisely. USB Charging: Built in 300mAh lithium polymer battery, with low power consumption and long standby time max last for 24 months. Maximum number of unlocks up to 2500 times. It can be unlock under emergency situation---Unlocked by fingerprint directly when charging. Sturdy structure: The fingerprint lock body is made of all-zinc alloy and the lock beam is made of stainless steel for superior cut resistance, protect your cabinet or your home against thieves.