Bought this for my son to help learn saxophone. He is happy with the performance and said it helps him learn to keep time. Has option to 'ding' on every whole note, with settings such as 4/2, 4/3, 4/4 etc. Seems loud by itself but my son says he cannot hear it while playing, which to me says he is on beat. One note, it says to adjust the weight to the top line for timing selection. We found it to be accurate with the top of the weight at the desired selection, not the top line (of 3) engraved on the weight.
Rating:
[5 of 5 Stars!]