Includes the classic SM58 microphone cartridge, the SLX2 transmitter, and the SLX4 diversity receiver. The SM58 cartridge is the choice of pros the world over featuring 50Hz to 15kHz frequency response tailored for vocals with brightened midrange and bass rolloff, a uniform cardioid pickup pattern that isolates the main sound source and minimizes background noise, a pneumatic internal shockmount system that cuts down handling noise, built-in spherical wind and pop filter, and break-resistant stand adapter.