Made by Korg.
This handy palm-sized tuner is a great inexpensive aid for pipe bands in tuning drones and setting the Low A on chanters.
Also useful as an individual reference.
A0 (27.50Hz) - B7 (3951.07Hz)
Tuning Mode: AUTO, MANUAL
Calibration Range: A4=430 - 449Hz (1Hz steps)
Power: 2 AAA batteries (sold separately)
Battery Life: approx. 100 hrs with alkaline battery on continuously
Dimensions: 2.4in (W) x 3.8in(H) x .6in(D)