230 Degree Wide Angle LED beam. - 500 Lumens - Lights in the Back of the Headlight. Perfect for Walking the Dog or Riding a BIKE， so you can easily be seen. - Rechargeable Battery via USB - Waterproof Design - 6 hour run time on a single charge The secret is Beacon Beam Xtreme's 54 super bright LED lights. Now you can see， be seen and use both hands in any extreme. The 230° Degree wide LED light goes where you look and is always in your line of sight! No Hands Needed! - Adjustable head strap to fit any size - Great for hiking， camping， home repairs， dog walking， bike riding， emergencies， etc