LED luminous bracelet adopts USB charging mode, which can be charged more conveniently and quickly. Designers use one button design. It can control four modes of light: fast flash, slow flash, always on and off. We also have battery mounted models. Designers and volunteers tried hundreds of materials together, and finally chose this soft, skin friendly, breathable and waterproof material. High Visibility Light Up Band for Runners, Bikers, Walkers, Pet Owners. Support logo customization.