NUX B-6 Wireless Microphone for Saxophones
If I could ask the manufacturers to improve it I'd make the on off switch a different colour so easier to find in the dark and on the receiver which plugs into the desk I'd put the on off switch on the end, rather than on the side so that you can turn it on and off without unplugging it. Very reliable and a great upgrade from wired mic which I would repeatedly step on the wire and pull if off the sax - now I can roam free!