Fingerprint Unlock: Your finger is your key, 1 second quick unlock, record up to 15 different fingerprints, including 2 administrator fingerprints, easy to use. No reset button, only the administrator can reset or manage fingerprints.

Small Metal Padlock: Lightweight padlock with 0.4 cm diameter stainless steel shackle, (3.2+2.6) x 3.2 x 1.3 cm, 0.06 kg, inner shackle 2.2 cm long, width 1.8 mm, made of zinc alloy and the shackle is made of stainless steel for superior cut resistance to protect your gym locker.

Extremely Long Operating Time and USB Rechargeable: The smart padlock is equipped with low power consumption and long standby time. 110MAH rechargeable lithium battery can support 6 months standby time and can be unlocked more than 2000 times. When the battery is low, it lights up red, just connect the USB power or charge it with a power bank.

Wide Indoor Use: The size of the smart lock is so small that you can easily put it in your pocket and it is the best choice if you want to take it to the gym, school and fence, toolbox, cases, chests, cabinets etc.