Selectable Auto-tuning, Manual-tuning, and Sound Modes.Wide tuning range, for bass guitars and drop-tunings (A0~C8).12 pitch reference notes (C4~B4).
Adjustable calibration (415, 435~446hz, 1hz increments).
Key transpose for tuning a variety of instruments (C, Eb, F, Bb).
Built-in microphone.1/4" input & output jacks.
Auto Power-Off after 20 minutes, with memory back-up.
2 AAA batteries, included.