Looking for reliable stage-ready tuning This used D'Addario CT-20 Chromatic Pedal Tuner is in great condition and delivers quick, accurate tuning with true bypass for zero tonal coloration. Designed with a bright, full-color vertical LED display that's easy to read on dark stages, the CT-20 supports standard tuning and calibration from A435�CA445 Hz. Housed in a rugged metal chassis, it's built to withstand gigging life while offering precise +/- 0.5 cent tuning accuracy. Compact and pedalboard-friendly, it operates on 9V DC power (not included). Whether you're rehearsing or performing live, the CT-20 is a dependable tool that ensures your sound stays pitch-perfect without sacrificing space or tone.