Features:
With the retention of clips, display rotation 360 degrees, easy to view
Guitar and bass tailored features frequency range
Pitch calibration (415-466 Hz)
Highly sensitive vibration sensor

With the metronome function (only the screen shows the heart beat, no beats sound issued for their own practice, to avoid disturbing other friends)

Comparable to a rack-mounted tuner! This section also with a metronome! Let you play, just look at the metronome can, and will not affect other people!