The Sony CFDIS015 digital boombox is a CD player with full CD-R and CD-RW playback kit and a radio. Connect up your digital music player with this package and you can play MP3s at full volume and in great sound quality, thanks to its 1.7W+1.7W stereo RMS output. The bass reflex speaker system and MEGA BASS provide rich, deep low tones and a more powerful, crisp overall sound. The FM/AM tuner comes with digital tuning and 30 presets, and the unit even has a built-in tape deck and recorder. Plug in and power up at home or use C batteries to get it out and about with you.