Let Musedo keep your show running smoothly. The display can be rotated to virtually any angle or position for easy viewing while tuning. The display changes from Orange to Green to allow the user to very quickly get in tune. More visuals in the form of arrows display whether the not is sharp of flat and which way to tune the string. In a noisy environment, this is essential to quick and accurate tuning.You can get it any color you like, as long as its black or white!