The speakers and microphones in Setcom's Half Shell Helmet Kit are designed for highway speeds and noisy environments. It features a low-profile, aerodynamic design and is made of modern, lightweight, UV-rated plastic for extended durability. You have the option to slide it up or snap it onto the helmet. The kit is available in single or dual ear speaker systems and a modular plug makes the speakers easy to repair or replace, should the need arise. The kit installs in seconds and is compatible with most half helmets, including Super Seer, Shoei, and Bell.