The SR-1050 Auto Chromatic Tuner by Matrix provides quartz accuracy tuning in a compact, "shirt-pocket" size design. It features an easy to read LED display that indicates the note played. Acoustic instrument tuning is not a problem with the built in microphone. There's an line-in for electric instrument tuning. There's even a single button calibration for matching tuning to other instruments. The SR-1050 is extremely easy to operate and can be used for virtually any stringed or keyboard instrument.
Features:
Tuning Range: C1 (32.70Hz) - B6 (1975.53 Hz)
Accuracy: + 1 cent
Calibration: automatic calibration switch
Terminals: 1/4" input jack
Color: Black
Requires 2 AAA battery which are not included
Size: 3 1/2" Wide x 1/2"-3/4" Thick x 1 3/4" Tall