Sennheiser SK 100 G4 Bodypack TransmitterIdeal for daily use on the stage, the SK 100 G4 from Sennheiser is a rugged bodypack transmitter that is compatible with evolution wireless G4 100 systems. Using infrared, this bodypack is easy to wirelessly sync to a receiver. Using an innovative linking functionality, its fast frequency allocation allows up to 12 receivers. Other features include up to 20 compatible channels, up to 42 MHz bandwidth (with 1680 selectable frequencies) thats fully