You can attach this ultra-lightweight chromatic tuner to your acoustic guitar or other string or wind instrument for easy and accurate tuning. The AW1 has a piezo pickup and a built-in microphone for reliable pitch detection. Other features include marks to indicate pure major or minor third intervals, a Meter Reverse function that lets you invert the display, adjustable calibration, and Auto Power Off battery conservation. Category: Guitar Tuners Brand: Korg |