Enjoy the high quality stereo sound and style only Plantronics can deliver, using your music-enabled mobile phone. You can switch effortlessly between conversation and entertainment. This MHS123 headset is lightweight, stylish, and comfortable, and it delivers excellent sound and crystal clear conversations. High fidelity stereo sound provides an exceptional listening experience for music or video, and you have the flexibility to wear the headset in stereo (to immerse yourself in music) or mono (to listen to tunes and hear others). Comfortable ear cushions and over-the-ear loops give you a secure fit, and the inline microphone with convenient one-touch call answer/end button is easily accessible.