ROCKMAN BASS ACE in Mint Condition as new never played Code Ef11

This headphone amplifier lets you practice silently anywhere, without sacrificing great tone. Every Rockman gives you compression, volume control, and stereo auxiliary input/output for playing along with your favorite songs, all with high quality and a low price. You can even connect the output to a mixer for recording! You can also connect the output of an iPod to the Rockman headphone amplifier the same way you would connect a CD player! POWER: SINGLE 9-VOLT BATTERY (OR DUNLOP ECB-005 AC ADAPTER no available) Tone Controls: Switchable Treble Boost and Mid Boost