KORG's GA-2 MG is a stylish, compact, lightweight tuner for guitar and bass. It's easy to use, accurate and has a large LCD display that clearly shows the note and string name. There's also a needle-style meter that has a quick response time and red and green LEDs on the left and right of the device that show any differences between the note on your guitar and the reference pitch. The calibration is adjustable and the tuner has a detection accuracy to within 1 cent. The KORG GA-2 MG supports 7-string guitars and 6-string basses too.