The world's first helmet with Intelligent Noise-Control built it for a more quieter peaceful ride. The momentum puts their top of the line and proven 20S technology inside a sleek and safe fiberglass shell. No more dealing with a microphone it's built right in! Sena's advanced sound processing filters out road and wind noise around you making it easier to hear the other riders your are connected to. Listen to music through your phone or through the built in FM radio, making multitasking and hearing turn-by-turn GPS directions a breeze.; ; Uses the latest technology to reduce wind and road noise Activating the Ambient Mode button turns on an external microphone to amplify the sounds around you Full-face helmet with built-in speakers and microphones Composite fiberglass shell UV resistant quick release visor Breathable foam liner that is removable and washable Top and chin vents with an exhaust port to keep rider cool Reinforced chin strap with double D-ring clasp Offers 8 intercom connections to chat with other riders at a working distance of 1 mile FM radio DOT certified Includes a Pinlock fog resistant insert