The Mag-9 Sena is a DOT certified open face helmet designed specifically to accommodate the Sena SMH10 Bluetooth stereo headset communications system. The helmet allows riders to remove its dock cover and easily insert and attach the Sena Bluetooth SMH10 communication system, without compromising the fit. The helmet is built with a tough yet lightweight polycarbonate shell, and it can be worn with or without the shield and visor. It offers a fast and easy tool-free shield change with an optional drop-down sunshield. It is available for $179.95 in sizes XS through XXL.