Matrix Matrix Quartz Deluxe Metronome MR-800

My son's piano teacher recommended this metronome. We have only been using it for about a month and so far so good! It is easy to use and a simple design. The only reason I gave it four stars instead of 5 is that it is ridiculously loud (it actually hurt my ears when I turned it on to try it) and you can't adjust the volume with a volume control. I supposed it might be an excellent volume for a brass instrument. Our piano teacher told us that it will not be as loud as the battery gets depleted and she just puts a sticker or piece of tape over the speaker until it calms down. That worked well enough! I will need to update later to comment on longevity of the product.

I like it so much I bought one for an up and coming drummer.

Does what it was designed to do, well. A volume control would have given it 5 stars; I have to place tape on the speaker to reduce the volume.

Piano can be loud, percussive. This is a great metronome. Like the different beats on beat one when needed.

FINALLY, I found a metronome loud enough to use with my resonator banjo