Rio Karma Specs :
20gb ($399) and 40gb ($499?) models
2.7” X 3.0” X 0.9”, 5.5oz
MP3, WMA, Ogg Vorbis and FLAC support
cross-fade between tracks (even different formats)
5-band parametric equalizer
LCD: 49mm, 160x128, indigo backlight, 16 shade grayscale
USB 2.0
15-hour continuous playback on internal Li Ion battery
Docking station adds drop-in charging, dual RCA Line-Out, and an Ethernet port for networking (can assign IP address to dock and control player via HTML interface).
Auto-synchronization with Rio Music Manager
Rio DJ (intelligently finds, mixes and creates playlists from tracks on command)
Dynamic playlist generation (on-the-fly playlists)
Transfer content between multiple PCs