Shure BLX14R/P98H S8, UHF Wireless System, Beta instrument series, With BLX1 pocket transmitter and PGA98H clip microphone, Up to 7 systems simultaneously, Pilot tone, Microprocessor-controlled antenna diversity, Quick-Scan function for free frequency detection, Condenser clip microphone with frequency range 20 - 20,000 Hz and cardioid polar pattern, 9.5"" 1U metal receiver, Detachable BNC antennas, XLR and jack outputs, Audio status LEDs, Frequency range S8: 823 - 832 MHz, Including rack mount kit