Shure BLX14R/SM35 T11, SM Headset Series, UHF Wireless-System with BLX1 pocket transmitter and SM35 headset microphone, up to 3 Systems parallel, Pilottone, antenna-Diversity, Quick-Scan to find free frequencies, condenser headset SM35 60 - 20.000 Hz, cardioid, 9,5" 1U receiver with metall housing, removeable BNC antennas, XLR- and Jack outputs, Audio Status-LEDs, frequencyrange T11 863 - 865 MHz, incl. rackmountkit