Sennheiser SR300 IEM G3 / E-Band, Evolution Wireless In Ear transmitter, 1680 switchable frequencies, 6,3 mm headphones out, frequencyrange E-Band, 823 - 865 MHz, 20 Presets, switchable Hiboost, Autotune-Function to search free frequencies, LCD Display with NF-Peakhold and HF level- and channel, 1 BNC antanne out, 2x XLR female input, powersupply 10,5 - 16 V DC