descriptionFeatures: Super bright night running light: This night chest light is specially designed for runners. The 380 lumens LED light is enough to illuminate your road even in the dark night, providing a clear view within 20 meters, allowing you to clearly see the obstacles on the road, avoiding potential hazards and ensuring your safety. The triangular flash on the back is always in strobe mode, allowing you to easily distinguish dark or low-light areas, and can also be used to warn others. IPX 5 Waterproof & USB Charging: Equipped with 2000 MAH battery, you never need to buy a battery, you can use the USB charging cable for fast charging, the chest light can adapt to various USB ports, such as AC adapter, mobile power, computer, car. The IPX 5 waterproof design is suitable for outdoor activities, night running, biking, walking, jogging, camping, hiking, fishing, mountaineering, without worrying about rain. Lightweight and comfortable: The elastic band can be adjusted to suit your body type, making it more comfortable and convenient to wear. Lightweight and flexible, the adjustable elastic band is suitable for everyone to wear, and it is stable to wear. Safe night driving lights, versatile: different from traditional driving lights, they are designed with reflective tapes. The reflective strip on the elastic band can emit obvious reflected light at night, providing you with all-round protection. This adjustable night running chest light is suitable for many purposes, including night running, walking, jogging, hiking, fishing, camping, climbing, car repairing, outdoor adventure, etc.