Features1Versatile Design: The light can be easily attached to your wrist, ankle, or cycling helmet, making it suitable for various outdoor activities, effectively increasing the safety. 2Waterproof Performance: Made with silicone, this running light is designed to withstand any harsh weather conditions. Whether it's raining or stormy, you can use this light to keep you visible and enhance your sports comfort. 3Enhanced Visibility: With its powerful focused beam, this light illuminates your way and ensures clear visibility, even in dark nights. It provides a bright and illuminated path, allowing you to see ahead clearly and be easily noticed by others. 4Secure and Adjustable Fit: Featuring a secure strap buckle design, this light stays securely in place even during intense movements. You can freely adjust the tightness of the strap for a snug and comfortable fit, ensuring stability and convenience throughout your activities. 5Long Lasting: This USB rechargeable light is versatile and durable, making it suitable for various nighttime activities such as running, cycling, and fishing. Its long lasting battery ensures you won't have to constantly replace batteries, providing convenience and longevity.SpecificationItem Type: Running Safety LightMaterial: SiliconeWeight: Approx. 117g/4.1ozBattery Type: Lithium Battery (Shipped with Built In Battery)Battery Model: 651730Battery Capacity: 300mAhPackage List1 x Wrist Light1 x Ankle Light1 x HelmetLight1 x USB Cable