Neckband MP3 Player With Built-In Headphones - Supports MP3 and WMA Music Formats * Waterproof Rating IPX-8 For Submersion Up To 1 Meter (3.3 Feet) - USB 2.0 Compatible For High-Speed File Transfer * Designed For Watersports - Operates On Rechargeable Battery, Up To 10 Hours * Compatible With Swimming Goggles - Includes Two Sets Of Ear buds: Water Use, Land Use * High-Fidelity Sound Reproduction