RCA RCD148 CD Boombox with MP3/WMA CD Playback CD/radio boombox with MP3, mp3PRO, and WMA CD playback and ID3 tag recognition (for artist/track information) 2.5 watts per channel, 4-inch speaker drivers in tuned, bass-reflex enclosures 32-track programming, SmartTrax navigation; includes MusicMatch music-management software Includes remote control, clock, and battery backup option Operates on AC power (cord supplied) or 6 D batteries (batteries not included)