The SHURE's SLX14/SM35 includes SLX4 wireless receiver, Shure SLX1 bodypack transmitter & Shure SM35 headworn microphone. This Shure SLX wireless microphone is ideal for use in small clubs, large installations, or arena tours. The tight and unidirectional cardioid polar pattern of SM35 can prevents feedback and signal bleed onstage by providing exceptional rejection of off-axis sound sources.