Sennheiser ew 100 G4-CI1 G-Band, UHF Wireless System, With an SK 100 G4 pocket transmitter and a CI-1 instrument cable, G-Band: 566 - 608 -MHz, Includes a rackmount, a CI-1 cable, a RJ10 connecting cable, an NT2 power supply and 2x AA batteries @+*Features of the EM 100 G4 9.5