About this item [Motion Sensor Control] Features an infrared motion sensor with a detection range of 10cm, you can simply wave your hand in front of the LED headlamp to turn it off or on when your hands are busy by something else. [USB Charging and Long-Lasting Power Supply] Built-in 1200mAh Li-polymer battery. This ultra powerful LED headlamp can be fully recharged in 3-4 hours and has a maximum run time of 15 hours in low mode and 5 consecutive hours in high mode. [Super Bright and 4 Lighting Modes] Four different lighting options: high (500 lumens), medium (200 lumens), low (100 lumens), and SOS strobe mode for emergency. Simply press the mode button to dim or brighten, and long press for 2 seconds to enter SOS mode. [IPX6 Waterproof and Tiltable] Designed to conquer all weather conditions, from extreme heat to freezing cold, our professional headlamp has been tested to survive heavy rain and snow. The 45 tilt adjustment makes it ideal for night hiking, running and camping. [Compact and Comfortable] The 60g weight is definitely a great point for runners as it is barely noticeable on your head. Perfect for long distance users looking for a comfortable fit. The adjustable and stretchy strap fits children and adults perfectly.