KORG Rimpitch-C2 Soundhole Tuner for Acoustic Guitars (Rim Pitch C2)

Attach it to the sound hole and tune at a natural line of sight. Supports tuning in any scale or key. Also includes a calibration function. The piezo pickup detects notes quickly and accurately. The high-brightness LED display is intuitive and easy to read. For all acoustic guitarists who care about how they look on stage.