Experience the freedom and fun of the MX203S from Plantronics! This stereo headset allows you to take calls or listen to high fidelity stereo music on your MP3-enabled phone. Experience an exceptionally stable, comfortable fit with the unique Flex Grip design – perfect when you are on the go! Be heard clearly in windy environments with WindSmart technology, providing Plantronics' distinctive sound clarity. Put an end to fumbling with conveniently located one-touch call answer/end. Compatible with most built-in MP3-enabled mobile phones.