Features:
10 Groups of Fingerprints: the padlock supports up to 10 fingerprints recording(support two administrators).
USB Rechargeable: built-in a 300mAh lithium battery
IP65 Waterproof: can be protected from water and dust. 
With LED Indicator: with 3-color indicator to represent different status.
Low Battery Prompt: when the voltage ≤3.5V, the red indicator flash fast for 15s. If it keeps in the status of low battery, it will alarm per minute.
Unlock under Emergency Situation: it can be unlocked by fingerprint directly when charging.
Superior Strength & Durability: made of aluminum alloy body and stainless steel latch hook.