Reflective tape optional: Very light, with a flexible shoulder strap, which can be adjusted in length to ensure comfortable use.Adjustable brightness: The rechargeable LED faceplate is designed with 3 kinds of brightness, which can be adjusted according to different surrounding environments. At the same time, the direction of the light can be freely rotated 120 degrees, allowing you to better understand the road conditions.Waterproof USB charging: The rechargeable front side is equipped with a USB charging cable, which can be easily connected to a mobile power source for charging. It takes about 3 hours to fully charge via the included micro USB cable, which is based on a powerful 2000mAh rechargeable battery. They provide waterproof function, you don't have to worry about getting in trouble when it's raining.Soft and adjustable shoulder strap: Equipped with elastic seat belts and adjustable buckles, you can tighten and loosen the shoulder straps as needed and easily adjust the size. The rechargeable led headlamp, which is very light and will not interfere with your exercise. Improved vertical directional beam with adjustable angle to meet the needs of uphill and downhill riders.Safer: The reflective tape has a white light on the front and a red warning on the back, adding another layer of protection as they not only let you see oncoming vehicles but also help you see the roads and dangerous trails. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia