Your fingerprint is your key. The advanced fingerprint identify technology provides you a more secure private space.And protest your property from theft. If you use this fingerprint padlock for public locks, also you can share the lock with your family, it supports 10 group different fingerprints. your finger is the key that helps you get rid of worrying about lost keys or forgotten combinations.The smart padlock can collect 2 administrators and up to 10 different fingerprints total. built-in a lithium battery which can be easily charged by USB cable and last 6 months without use.made of aluminum alloy body and 303 stainless steel latch hook, super durable! The smart lock will blinking red to remind you to charge it