Shure BLX14/SM35 S8, SM Headset Series, UHF Wireless-System with BLX1 pocket transmitter and SM35 headset microphone, up to 6 Systems parallel, Pilottone, antenna-Diversity, Quick-Scan to find free frequencies, condenser headset SM35, 60 - 20.000 Hz, cardioid, receiver with plastic housing, internal antennas, XLR- and Jack outputs, Audio Status-LEDs, frequencyrange S8 823 - 832 MHz