In the process of designing six, seven, and eight string guitars for players who use all kinds of alternate tunings, Ibanez learned plenty about what works and what doesn"t when it comes to tuners. Ibanez makes tuners that work--quickly, accurately and with the reliability that performers have come to trust. The GU1 is the first guitar/bass auto tuner with strobe display mode -- the strobe pattern flashes in a circular motion when you"re in tune. Also includes regular needle display mode.