Noise Gone. Music On. With a flip of a switch, the X1 captures and negates external sound waves to block out unwanted ambient noise so you can focus on the music and leave the world behind. Active Noise Cancelling technology combined with high-fidelity 10mm neodymium drivers deliver a whole new level of audio performance. Featuring an inline three-button remote and mic for music and call control, the rechargeable ANC unit also offers up to 8 hours of ANC playtime on a single charge! Tune out the world and tune in to sound.