KORG AW-OTG-POLY for Guitar The AW-OTG-POLY is a tuner that delivers the high-precision tuning that all guitar players desire, with amazing visibility. It employs organic EL, which is attracting attention as a next-generation display, achieving a wide viewing angle and clear display. Furthermore, it is equipped with polyphonic tuning, which allows you to strum all strings at once and instantly see which strings are out of tune. The KORG AW-OTG-POLY/AW-OTB-POLY offers all guitarists/bassists a completely new tuning experience. #Tuner