Very light, equipped with a flexible shoulder strap, adjustable in length, to ensure comfort of use. [Luminosity; adjustable]: The rechargeable LED panel features three brightness levels, projecting up to 200 lumens with a visibility range of 20 meters, adjustable according to different surrounding environments. The light direction can be freely rotated 120 degrees, allowing better visibility of road conditions. [USB charging & waterproof]: The rechargeable front panel comes with a USB charging cable, easily connectable to a power source for charging. It takes approximately 3 hours to fully charge using the included micro USB cable, powered by a 2000 mAh rechargeable battery. Features IPX-65 waterproof protection, making it resistant to water jets and suitable for use in rainy conditions. [Adjustable soft shoulder strap]: Equipped with elastic and adjustable buckles, the straps can be tightened or loosened as needed for a secure fit. The headlamp weighs only 160 grams, lightweight design ensures it does not interfere with movement during activity. Features an improved vertical directional beam with adjustable angle to meet the needs of uphill and downhill use. [Safer]: Front white light and reflective elements, combined with rear red alert lighting, provide increased visibility. Helps you see the path ahead while making you visible to others, enhancing safety during low-light conditions.