Large backlit colour LCD needle display. Tunes chromatic, guitar, bass (low B to high C) and ukulele. Tunes down to 2 flats. A4 range: 430-450 Hz. A2 to A6 tone generator plus guitar, bass and ukulele. Metronome tap tempo or range 30-250 bpm. 4 metronome sounds. 10 beat settings, 8 rhythms. Rechargeable (via included USB-C cable) Li-Po battery.