The Extreme Sport Waterproof Music Player Headset was especially developed to be used in sports activities that involve water, namely swimming, running and outdoor sports. Comfortable and light, this wireless headset is ideal to enjoy your music during workouts. Completely water resistant, this headset has 4G capacity and support mp3 and wma files. So that you’re never without music whenever you need, you can count on 10 hours of your favourite playlists.