The Boss TU-30 Tuner & Metronome puts the main features of the TU-80 into an even smaller package that can fit in virtually any pocket you've got.
The metronome can be set from 30 - 250 bpm, with quarter notes, 8th rest/8th note, straight 8th notes, triplets, triplets with the second subdivision removed, 16th notes, and both versions of the son clave.
The tuner can tell you how sharp or flat you are in reference to any pitch, and the Accu-Pitch function beeps when you've reached the correct tuning. This function can help percussion students develop their ear for timpani performance.
A large LCD display makes everything easy to read from several feet away. The TU-30 can run for about 50 hours of continuous use on two AAA batteries (included).