The Cavalry comes pre-wired and ready to go with built-in Bluetooth capabilities and controls, so users can enjoy all of the great features of Sena's communication devices without the hassle of installing a headset. Chat with your buddies over the intercom system or take calls directly through your helmet with the built-in microphone for crystal clear conversations, and hear your music louder and clearer than ever before thanks to the built in half-helmet speakers on each side along with optional ear cups to boost the audio level while you're out on the open road.