Biometric Fingerprint technologyNo keys, No passwords, No APP, No Bluetooth, your finger is your key. Say goodbye to tedious password combinations without worrying about losing your keys or forgetting your password. The fingerprint padlock has a high fingerprint recognition rate of 99% and a quick unlock rate of 0.2 seconds. Can record up to 20 fingerprints for family or personal use, friendly to children and the elderly. Long Run Time USB RechargeableSmart padlock have low power consumption and long standby time. The smart fingerprint lock is charged by USB, a rechargeable 100MAH lithium battery can support 1 year standby time and can be unlocked over 2000 times. If battery is out of power, it will keep locking with the red light blinking. Rugged Construction SecurityThe fingerprint padlock body is made of strong aluminum alloy material, and the stainless steel padlock beam further improves the durability of padlock, can anti-rust, anti-cut, waterproof. The shackle has excellent anti-tampering performance and superior cut resistance to protect your locker room or your home against thieves. Lightweight, Portable and widely usesThumbprint lock offer small space occupation and light weight as well, which make a stylish compact smart padlock for you, can be carried anywhere you go. The amazing design allows great compatibility. Waterproof padlocks can be used indoors and outdoors, such as gym lockers, luggage lockers, school lockers, bike sheds, warehouses and other items you want to protect.