LONG RUNTIME & RECHARGEABLERechargeable headlamp comes with a USB cable to provide a stronger bright and longer life. Built-in 2*2600mAh rechargeable batteries, it runs up to 5 hours on white light, and 2.5 hours on high brightness. Long battery life and low battery warning, help you master battery usage and charging. The red warning backlight is particularly good for outdoor activities at night as it could protect you from a rear accident.IPX6 WATERPROOF & WEATHERPROOFSturdy aluminum construction for this head lamp with IPX6 rated water resistance, can survive heavy rain and any impact in common outdoor activities and work conditions. Weighing 10.58oz / 0.3kg (with batteries) with easily adjustable, ergonomically designed elastic headband makes the lampe frontale perfect for long-distance runners looking for a comfortable fit.WIDE APPLICATIONS, DESIGNED FOR YOULED headlamp ideal for outdoor nighttime walking, running, cycling, hiking, camping, climbing, hunting, fishing, walking the dog, etc. Half-year replacement warranty and lifetime technical support. 24h professional after-sales service. Your complete satisfaction is our top priority. If you have any questions, please tell us at first time, we will offer you with professional services and satisfactory solutions.