I was looking for a helmet-compatible iPhone with good sound quality. I relied on reviews to make my choice. This product is exactly what I was looking for. His impeccable sound quality is worthy of Seinheiser. If you listen to music at a reasonable volume, one can quite agree if someone speaks to us. By mounting the sound slightly, one can be completely isolated from the outside world (useful in transport). The cable is long enough though somewhat late, of flimsy appearance ... The ability to fold the headphones is an asset for safely storing it quickly in his pocket. The perfect accessory for using his iDevice to play music seriously while keeping a check to win on appeal or change tracks during playback.