DI120 is a dual channel direct box. It converts your HI- Z signal to LO-Z XLR. You do not need a batter or phantom power for this direct box. DI120 is one of the useful and versatile tools available indispensable in enabling easy interfacing and connection between various audio gear in numerous applications. Great for keyboardists, acoustic & electric guitarists, bassists and other instrumentalists need to plug into the snake on stage. Its heavy duty metal construction, durable and stable and 4 rubber feet pads protect the DI120 well.