Product Features

• Waterproof, safer in water fog when riding in the rain.
• With an adjustable velcro strap, easy to install and remove.
• Make yourself visible at night and remind someone else of keeping distance, add safety.
• USB charging mode can be convenient and useful.Exquisite workmanship,lightweight and easy to carry.
• Not only use for mountain bike / road bike / folding bike, but also jogging, walking, bicycles, car emergency, horse-riding, road emergency & camping,etc.