Roland mobile cube, like new! The roland mobile cube is a battery-powered stereo guitar combo amplifier that plugs you into instant audio entertainment. Small and mighty, the stereo mobile cube amp can handle all types of electronic instruments and audio devices, and can be used anywhere, anytime. Connect microphones, electric and acoustic guitars, keyboards, drum machines, mp3 players, you name it, and jam for up to 15 hours. At just 11-1/16" (w) x 4-1/4" (d) x 7" (h), mobile cube is a traveler's dream. Built-in chorus & reverb. Call