Wide Application: perfectly used for doors, cabinets, bikes, backpacks, storage lockers, etc. <br><br> Easy Operation: no need any tools, you can add or delete fingerprints easily by following the instructions of the user manual.<br><br> 10 Groups of Fingerprints: the padlock supports up to 10 fingerprints recording(including one administrator). <br><br> USB Rechargeable: built-in a 120mAh polymer battery, can support up to 3 months standby time.<br><br> IP65 Waterproof: can be protected from water and dust. High waterproof grade allows outdoor application. <br><br> With LED Indicator: with 3-color indicator to represent different status.<br><br> Fast Response: super CPU, good recognition, low error rate, 1 second to unlock.<br><br> Low Battery Prompt: when the voltage ≤3.5V, the green indicator will flash.<br><br> High-quality Material: high toughness steel wire, durable to use.