Sennheiser ew 100 G4-CI1 C-Band, UHF Wireless System, With SK 100 G4 bodypack transmitter and Ci1 instrument cable, Frequency range: C-band (734 - 776 MHz), Including rackmount, Ci1 cable, RJ10 connection cable, NT2 power supply and 2x AA batteries@+*Features of EM 100 G4 9.5