LS2 helmets with Cardo freecom 4+duo installed. Bought the Cardo helmet systems from Sturgis Motorsports for 480$ a couple years ago. Used a handful of times. Battery life is good as they have always been stored in a heated garage. Also have the clear visor for the gray helmet. White helmet is a size medium and gray is a size large. Also selling a ls2 riding jacket with an insulator liner. Helmets are in new condition as well