Amazon.com Product Description
SONICblue's lightweight, portable Rio One lives up to its name--you can listen to digital audio for up to 10 hours on a single AA battery. With its 32 MB internal flash memory, you can enjoy over an hour of near CD quality, skip-free music (there are no moving parts). It includes an expansion slot that enables you to add memory using SmartMedia cards.

In addition to MP3, Rio One also supports the Windows Media Audio format, so you can personalize which songs and what format you want to store. Specify playlists and what songs to transfer using the included Real Jukebox and iTunes software and you've got go-anywhere music.

Connect the Rio One to either a PC or Mac with the included USB cable and transfer songs at speeds five times faster than parallel ports. You can also download software upgrades to keep your player up to date on the latest formats. The Rio One comes with earphones, one AA battery, a USB cable, and a CD-ROM with audio-management software for PC and Mac.