I also run all of the schools PA equipment and have Shure ULX & SLX units with JBL speakers at my disposal. Even came with a couple extra screws. Click is awesome. The material is soft and feels of good quality. Poor sound Easy to install and they look great. Next size would be too big, so Ill keep these. Can be a little tricky to use at first but once you get the hang of it it becomes really easy. The material comes up too high between the straps. I would suggest hand washing.