【90° Adjustable Beam Angle】 - The running light can be tilted downwards by 45° and can also shine straight at 45° to meet the needs of runners on uphill and downhill trails. The 90° adjustable beam design of the LED chest light perfectly meets the needs of runners for illuminating ground, slopes, and other complex terrain. 【IPX6 Waterproof】 - This running chest light for jogging is IPX6 waterproof and protects against splashes of water from anywhere, so you don't have to worry about rain or snow. Weighing only 210g, the belt is soft, very comfortable, and never falls off. Ideal for running, camping, hiking, hunting, fishing, climbing, construction, car repair, backpacking, and other indoor and outdoor activities. 【USB Rechargeable Running Light】 - The running light is USB rechargeable and waterproof: built-in 2000 mAh battery, USB power adapter. A USB connector is included, compatible with most ports, so you can charge your safety light anytime, anywhere. Charge faster, shine longer,