RCA RS2054/SYS/100W/DGTL AM-FM/MP3/USB/128MB MP3 INCL Rip & Go Technology - 128MB mp3 Player Included - Direct encoding / recording from CD, radio & AUX to mp3 player. No need for a computer Digital AM/FM Tuner with 32 Presets - Allows for best possible station tuning and fast channel changing. 32 stations can be stored in memory for quick future access. Motorized CD Door - Opens smoothly and easily. 100 Watts Total System Power - 2 x 50W @ 6 Ohms, 10%THD, 1kHz. RCA Sound Solution Demo - A built-in demo that allows the consumer to listen to CD quality music in a retail environment MP3, WMA, CD-R and CD-RW Compatible - Plays mp3, WMA, CD-R and CD-RW audio discs USB Host - Plug in your mp3 player and record/rip from CD or radio directly to the player without a computer, or listen to your music on the player through the audio system. Detachable Speaker Grills.