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 The PSWP4BK is a waterproof neckband MP3 player with 4 gigabytes of storage - perfect for listening to music while training in the pool. It's IPX-8 rated, for submersion in the water up to 3.3 feet. Plus, they've been designed to work with your swimming goggles without interfering. Connect to your computer via USB to load your favorite MP3 or WMA music files. It's easy to copy your music to this MP3 player: simply drag and drop your music files on the drive. Runs on a rechargeable battery for up to 10 hours of playback. The PSWP4BK includes two sets of headphones, one for water and one for land. Color: black.