Shure BLX14R/W85 T11, UHF Wireless System, SM Presenter Series, BLX1 pocket transmitter, WL185 lavalier microphone, Operates with up to 3 systems simultaneously, Pilot tone, Microprocessor controlled antenna diversity, QuickScan function to locate available frequencies, WL185 condenser lavalier microphone, 50 - 20,000 Hz, Cardioid, 9.5"" 1U Metal receiver, Detachable BNC antennas, XLR- and jack outputs, Audio status LEDs, Frequency range: T11 863 - 865 MHz, Incl. rack mount kit