With the 700 Mhz shut down about 75% of my microphones will become unusable. I have a mix match of wireless microphones. I wish to streamline the operation. I have a brand new facility that is being completed right now which 16 wireless microphones have been speced for it. I need to match that with my old facility. The three big brands I am looking at are Electrovoice, Shure, and Sennheiser. Shure UHF-R. Sennheiser Em 3700 Series. Electrovoice REV UHF series. What is everyones thought of pros and cons of these microphones?