The headphone guitar amp that lets you enjoy serious guitar sound, fast. Jamming late at night? Dont want to wake the neighbors? Maybe you want to work out a lick with your MP3 player without taking the time to set up your amp. You want to play guitar right now. amPlug is the answer. Simply plug this palm-sized headphone guitar amp directly into your guitar, and enjoy serious guitar sound anywhere, anytime. With its completely analog design, great care was also taken with amPlug's gain circuitry. "Metal" uses two stages of ultra-high gain plus a mid-cut circuit, giving you modern metal high-gain sound anywhere and anytime.