Fender's Auto Clip Chromatic Tuner provides precise chromatic tuning for electric, acoustic, and bass guitar, along with a mandolin, violin, ukulele, and banjo. It conveniently powers on automatically as soon as it is attached to the headstock of a guitar or bass or ukulele. The compact tuner's vibration-sensing capabilities let players tune easily and accurately in any performance situation, and its bright, color LCD screen is ideal for the darkest stages. An easy-to-read needle displays green when in tune and the sides light up red when flat and yellow when sharp. The powerful CR2032 battery also provides a longer shelf life.