Korg Clip-On guitar tuner a must for the acoustic guitarist, the simply clips to the instrument's headstock. The piezo sensor ensures accurate tuning, even in a noisy environment. The backlit display can be positioned for easy - and unobtrusive - viewing. Select either the internal mic or the piezo sensor for optimum response. Meter Reverse function allows intuitive tuning from any viewing angle. Calibration function accommodates a variety of concert pitches. Auto Power Off function maximizes the battery life, even if you forget to turn the tuner off. Memory backup function. Fast, accurate, and reliable guitar tuning - with clip-on convenience: While clip-on tuners offer convenience to every player, Korg’s AW-2G Guitar Tuner provides the swift and accurate results that today’s musician’s demand. The needle-style metering and large backlit display provide the ultimate in functional, high-visibility. Comes in black colour.