Super Waterproof: The waterproof grade of the smart fingerprint padlock is up to IP65 by a newly upgraded silicone edge, can be safely used outdoorultra-long standby time: Smart fingerprint locker locks for gym have lower power consumption and longer standby time. The USB rechargeable 150 MAH lithium battery can support up to 6-month of standby time or 2-month (2000 times of unlock) in one charge. When out of battery, the smart padlock will remain locked, simply connect to a USB power supply and recoverSet Your Emergency Code: Please set your emergency unlock password before use, when your fingerprints can not unlock the smart lock, you can use morce code to open the lock safelyQuality Upgrade: This big smart padlock is durable with high quality stainless steel lock beamWidely Use: The small cute padlock has compact size to be carried anywhere you go. You can use it as fingerprint locker locks for gym, keyless school locker locks, storage locker padlocks, bag padlocks. Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.