The Snark SN3 guitar tuner and metronome tunes acoustic, electric and bass guitars with dead-on accuracy! Tunes tighter so you sound better. Features:The Snark SN3 tuner has a full color display to provide a quick visual representation of your instruments tuning. Full color display. Tune using built-in mic or input jack. Electronic pitch pipe. Tap Tempo Metronome. Built in speaker. The SN3 tuner has a pitch calibration of 415-466Hz.