Enhanced Visibility for Night Activities: This COB LED armband light, emitting a powerful 500 lumens, ensures you are seen clearly at night, enhancing safety during running, cycling, or any outdoor sports. Long-Lasting & Rechargeable: Equipped with a 400mAh battery, this wristband light is USB Type-C rechargeable, providing convenience and eco-friendliness. Waterproof for Outdoor Use: With an IPX4 waterproof rating, the armband can withstand splashes and rain, making it ideal for all-weather use. Comfortable and Adjustable: Designed to be worn on either arms or legs, the adjustable strap ensures a snug fit for all sizes, promoting comfort and stability during use. Colour:As Shown Material:ABS+TPE Package Contents: 1 * running lighting Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.