Acoustic Guitar Direct Box with Volume SPECIFICALLY FOR ACOUSTIC PLAYERS! The MOEN NDI-A-II is a compact mini DI (Direct Box) specifically for acoustic guitars. Ideal for use on stage or in the studio to carry signal from the acoustic guitar to the mixing desk or mic pre amp. Moen listened to the comments of both stage and studio players and redesigned this special guitar pedal for both stage and personal recording studio applications with even more options for different musical situations! Simple effective and fast direct link to power up your acoustic guitar. Not meant to be harsh and offers clarity and lets the true tone of the instrument and pickup design shine through. Specifically voiced for acoustic application !It features Volume or GAIN level, inverted signal switch and Insert to add effects and Ground Lift. A must if you are an Acoustic guitarist. The pedal can be powered by AC power adapter - 9V 200ma (not included)