XSories AQNT3A002 Aqua Note, Waterproof Headset with Built-In 4GB MP3 Player (White) IPX8 Waterproof-Rated Headset with built-in MP3 player and rechargeable battery 4GB memory holds up to 700 songs Lithium ion battery provides 10 hours of music on a full charge Ergonomic, Lightweight, wrap-around design for extra stability and security 1-year Warranty