Sony Compact Portable CD USB AM/FM Boombox Speaker MP3 CD playback - Store and playback hundreds of MP3 music files ripped to CD, with shuffle function for randomised play order USB Playback - Release all your digitally stored music from a USB device or Walkman player. 2 Watts Output Power - Powerful boombox speakers deliver 2 Watts' worth of loud, crisp sound quality. FM / AM tuner - Get more listening choice with built-in FM / AM tuner, and enjoy your favourite radio shows on the move. AC / battery power - Plug in to the mains when you're at home, and use batteries to power your boombox on the go.