PT-21 is an easy to use and straight forward kind of tuner. Just press the switch and tune your guitar. Press the flat button if you want to tune down half a step. Accurate and small to fit almost any kind of pedal board.
- Guitar tuner
- Sturdy metal construction
- Flat button (if you want to tune down half a step)
- 9V adaptor only (due to its size there are no room for battery)
- True bypass