Remote authorization unlock Remotely authorize your family/friends/colleagues to unlock, App support 1 admin and 500+ general users, admin can authorize the unlock period and schedule, and review the unlock record with unlock time, unlock method and user name. *Thumbprint unlock Your finger is the key, do not worry about losing the key, Anti-theft, unable to copy keys. Fingerprint support 2 administrator and 20 normal users,0.3 seconds speedily unlock. *Extreme running time and USB charging functionSmart warehouse padlock with battery indicator, low power consumption and long standby. The rechargeable lithium battery can support 3 months of standby time and can be unlocked more than 2000 times. When the battery is dead, the smart lock will remain locked, just plug in usb power or charge it with a portable power bank. *Sturdy and WeatherproofThis mini fingerprint padlock design cabinet and delicate, forged with aluminum alloy metal body and stainless steel shackle