The rechargeable LED light will allow you to help you see and be seen on your early morning or evening runs, walks or any other activity you need to see what you are doing! The integrated light is IP44 weather and water resistant and Is CE & RohS certified. Soft woven acrylic material ensures fantastic comfort and is warm to wear yet allows heat to escape if you are working hard and building up some steam! The beanie is a one size fits all and fits all head sizes and is easy to wash by simply removing the LED light and wash with your other clothes. LED Light mode options: High, medium and low Activities: Running, Walking, Cycling, Camping, Fishing and more! CE & RohS certified Rechargeable: simply plug it in to a USB port (1-2 hours) Battery capacity: 200 Mah rechargeable Battery voltage: 3.7V Charging voltage: 5V Runtime: 8 hours (light mode dependent) Charging port: USB Colour: Black, Light Blue