90Adjustable Beam Angle- The traffic light can be angled 45down or 45straight to meet the needs of uphill and downhill riders. The 90 adjustable beam design of the LED chest light perfectly meets the lighting requirements of runners for complex terrain conditions such as ground and slopes. IPX6 Waterproof - This jogging chest light has IPX6 waterproof function, which prevents water splashing from anywhere, no need to worry about rain or snow. Lights USB Rechargeable Running Light- The running light adopts USB rechargeable waterproof design: built-in 1500 capacity battery, USB power adapter. The included USB port is compatible with most ports, so you can charge your safety light anytime, anywhere. Charge faster, light up longer and enjoy your activities to the fullest. Three Light Modes- This driving light has two light modes: high light, medium light and strobe. It's easy to use. The LED traffic light can be operated by pressing the button with one hand, allowing you to adjust the light mode in time without distraction and safely. Red backlighting allows you to be seen by pedestrians and passing vehicles, reducing risk.