Includes Two Headset Microphones: The system includes two headset microphones with wireless transmitter bodypacks. The system features separate receiver channels and separate XLR outputs. Duets were never this easy. Hypercardioid Microphone Polar Pattern: The hypercardioid polar pattern has a tighter area of front sensitivity and a smaller lobe of rear sensitivity than cardioid patterns. This pattern maximizes the directivity factor and results in greater rejection of unwanted noise and feedback. 200 UHF Channels: 200 UHF channels ensure that you can find open frequencies that are free of interference from other UHF sources. Gives you a more than 260foot range of freedom, thanks to the UHF bandwidth and the dual channel receiver.