USB RechargeableThis flashlight has a built-in high-quality 1200mAh rechargeable battery. You can charge any USB port, including micro USB cables. Once charged, it can last for 3-15 hours and also allows you to charge and turn on the light at the same time. No need to wait for a full charge or replace the battery. Lightweight and adjustable beamHeadlight-free weighs only 2.78 ounces (approx. 79 grams), making it comfortable and lightweight. The lamp head can be rotated 60 to illuminate any direction you want, making it very convenient for everyday use. The head flashlight uses a comfortable elastic headband that can be easily adjusted in length to fit the head size perfectly, comfortably suitable for adults and children. Super Bright and Motion SensorThe headlight flashlight uses a high-power LED chip with a maximum brightness of 500 lumens and can easily spot distances of 350 feet. It can give you a large area of light for night missions. It adds a motion sensor mode that you can easily turn on/off with a wave of your hand. This is very convenient when your hands are not free