Features: 3 LIGHTING MODES: Chest running light can freely switching highly, low beam, flashing modes. The night lights light up the ahead of you up to 30meters at night, allowing you to see the road conditions ahead clearly. COFORTABLE ELASTIC STRAP: LED running lamp is lightweight and adjustable elastic belt will not slip off your shoulders when running. Buckle fastener is easy to put on and take off. USB RECHARGEABLE: Built-in 2000mA battery, which can be charged power banks and adapter (charging voltage: 5V). With charge, night sports light can provide up to 4-6 hours of continuous light. IPX4 WATERPROOF DESIGH: Water-resistant designed perfectly for outdoor activities, night running, hiking, fishing, walking the dogs, etc. Hand release night running light helps you walk in the dark more safely and clearly. GIFTS FOR JOGGERS: The running gear lights are great night sports accessories. Not just for joggers or runner, walking lights are a versatile and useful option for both home and outdoor. Specifications: Material: PC+Nylon Color: As The Picture Shows Package Weight: approx.250g Front Light Size: approx.4x4x1.5cm/1.57x1.57x0.59in (More Size Detail, Please See Photo.) Package Includes: 1Pc LED Chest Light note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!