Work out to your favorite tunes with the Sony MDR-XB510AS EXTRA BASS Sports In-Ear Headphones in black. These headphones feature an IPX5/7 rating for water resistance, enabling you to exercise in them, wear them in the rain, and run them under water for cleaning. A one-button inline remote lets you control your music. Sony EXTRA BASS technology provides enhanced low-end, and arc supports keep them secure in your ears. Four sizes of eartips are included, as are three sizes of arc supports.