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.