Great sound in comfort Enjoy an extraordinary audio experience. You ll feel music with warmth, clarity and realism. Genuine sound faithful to the original recording. The Sony Cell phone flat cable is durable and doesn t tangle. Call and listen to music in handsfree comfort. Out of the pocket and into the ears. No hassle. Do more with SmartKey control More than a headset. Need to make a note when you re on the go? Press SmartKey and say what you want to remember. At a party and love the song that s got the joint jumping? Fire up TrackID with a simple press of a button. Cool? But that s just the beginning. SmartKey finds and controls all apps. Quick and easy. Standard audio plug Enjoy superior sound on any device. Most consumer electronics manufacturers use the same 3.5mm / 0.14in audio output. This means that you can connect and use this headset with your phone, computer or gaming console.