Get music without limits thanks to the Sony NW-WS413 4GB wearable sports MP3 player. It's sweat resistant and waterproof to a depth of 2m in fresh or salt water. Dust and temperature resistance (-5 Celsius to 45 Celsius) allows you to train in harsh weather and terrain. It includes swimming earbuds that prevent water getting into the headset. | Sony 4GB Sports Walkman MP3 Player (NWWS413BM) - Black