Meideal 3 in 1 Tuner Metronome Tone Generator Pitch Combo for Wind Instrument Big Sound Beat Tempo Transposed Tuning Keys C,F,Bb,Eb - Black Metronome, Tuner and Tone Generator 3 in 1 Large LCD with digital needle-style display 4 Transposed Tuning Keys (C,F,B!,E!) Auto and Manual Tuning Modes Full 8 octaves detection range