Ibanez PU3-BK clip on tuner

The Ibanez PU3 is a simple and efficient clip tuner: no dials, no power switch. The PU3 features an Automatic Power ON/OFF switch and an extremely accurate tuning response. Clip on, tune it and forget it.The indicator flashes up in different colors when the pitch is higher than desired pitch or lower, or in tune. Tuning Range A0 (27.50Hz) - C8 (4186Hz) Callibration A4 = 440Hz Power Supply Lithium battery (CR2032) x 1 Automatic Power ON/OFF LCD display