U-Trainer Brasswind Set

I use this in the morning and evening regardless of practice to keep my embouchure muscles engaged.

Using the isometric training I close it tightly for 60 seconds with 10 a second pause and repeat 3 times (although I may repeat more). I can feel the corners of my mouth with a satisfying warmth afterward just like when doing lip slurs. Comes in an easy travel pack for when you can't take your instrument with you too.

The dynamic training where you close 30 times before taking a 10 second pause - I would expect you're going to wear down and snap the plastic O-rings quite quickly so I don't use this option often. Although it probably engages some different muscles.

The one issue I have is that all the instructions come printed in German - I had to translate these and it would have been nice to have a translation, even if it's just on the U-trainer website I can't seem to find anything. The website is in English and has some advertising videos in English with some partial instructions, but nobody wrote the instruction card in English - seems a bit of a missed opportunity.

Overall it's a nice set of tools.