Thomann Compact Warmup Trumpet Mute

The build quality is excellent, the price is great, the fit in my trumpet is great and never falls out of the bell (and I believe it fits every trumpet), and the noise reduction is great and greatly appreciated by my neighbours :)
The only thing that you might consider not very good is the sound it makes, because on the higher notes it is a bit out of tune, but no more than you would expect from a mute, so there's not musch you can do about it, so I would definitely recomend it

The only thing is the sound. I personally don't like it. But it's built to sound like it and it does the job perfectly without annoying my neighbours.