Wallace TWC-M17C Trpt Practice Compact

This is a great idea; a practice mute that fits in your bell and takes up no room in your case. It's well made too and feels like it will probably last a lifetime. BUT, it's a massive compromise. Firstly it plays a semi tone sharp. "Pull the tuning slide out" say the instructions that come with it. Not very convenient and effects everything else about the way your trumpet responds and plays. AND it's not very quiet! About equal to a harmon mute at best. It has its uses but is hard to recommend in a market with many alternatives.