Korg OT120 Orchestral Tuner

Korg Orchestral Tuner
Reference pitch
Needle display
Auto/Manual tuning mode
5 Octaves (2 Volume levels)
A0-C8 Wide measurement range
Calibration range:  A4=438 to 499 Hz, 1 Hz steps
Built in microphone
Input jack, output jack, sound, DC in
Includes 2 - AA Batteries