Features:Wide Application: perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc.Easy Operation: no need any tools, you can add or delete fingerprints easily by following the instructions of the user manual.10 Groups of Fingerprints: the padlock supports up to 10 fingerprints recording(support two administrators).USB Rechargeable: built-in a 300mAh lithium battery, can support up to 2-year standby time and can be opened up to 2500 times.IP65 Waterproof: can be protected from water and dust. High waterproof grade allows outdoor application.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.Note: Please fully charge the product for the first time.