DMT-1 Digital Metronome. The Deltalab DMT-1 Digital Metronome provides many functions that are indispensable to the practicing musician. Above all, it's a pocket-size metronome that allows you to set a tempo between 30-360 BPM and listen to it played through a built-in speaker. Beats per measure can be set from 0 to 9 to cover every time signature imaginable. A variety of beat values or rhythm styles are available, ranging from quarter notes to sixteenth notes with variables for triplets and syncopation. The DMT-1 also has a fine-tunable tone generator function that will emit a specified pitch from a full octave of available notes, convenient for tuning instruments and/or for vocal training.