Plantronics PL-VOY-855 Voyager Bluetooth 855 Detachable cable lets you easily convert mono headset for stereo listening on your music-enabled Bluetooth phone Sound-isolating earbuds block out distracting background noise so that you can focus on music or conversation Plantronics AudioIQ two-way noise reduction technologynow every word can be clearly heard, regardless of the surrounding noise Seamlessly switch between calls and music with the same headset. Tune out the world, tune in your music and stay in touch 2-in-1 headset with one-touch call and music controls. Adjust volume, mute the microphone, track forward and back, pause, and then play on