With a USB charging port design, you can charge them in various charging modes. Battery indicator display the power of 33%, 66%, 100%, let you know the battery power. | The smart infrared sensor allows you to wake up and turn off the light through hand movements. The sensor distance is 5.9 inches/15 cm, response within 0.1s | The waterproof design makes your outdoor activities more convenient, and it can be used safely even in rainy or snowy days. |