Visible and SafeOur LED wristbands areensely bright when activatedboosting visibility especially in dark environments. The 360-degree ultra-high visibility design ensures maximum noticeability and safety for walking, jogging or cycling during twilight and night-time.Convenient USB ChargingUnlike most LED bands that require frequent battery changes, our LED Lighted Armband is USB-chargeable, offering practicality, convenience, economy and eco-friendliness. A single charge guarantees 6-8 hours of operation, ample for daily use.Various Lighting ModesEquipped with three lighting modes fast flash, slow flash and constant light our LED Armband caters to diverse preferences, making it user-friendly and adaptable.Waterproof MaterialLED Armbands are made of high-quality material and are skin-friendly, lightweight, waterproof, dustproof, sweatproof, and rainproof.(please don't wash it in water directly).UniversalThe size of this reflective running gears measures 35cm x 4cm, Weighing just 30g, and is suitable for all groups of people, just slap it where you want to wear it like wrist, ankle and arm. It doesn't feel like wearing it, the elasticity is suitable, it is durable, and it will not fall off.