The PSC Headset Mic Wired W/ Mini XLR features a three-wire positive bias, noise-canceling, electret microphone element with a cardioid pickup pattern. Its flat frequency response rivals the best handheld microphones while providing convenient hands-free use. Simple in its function, the PSC Headset Microphone sports a comfortable, user-adjustable headband and flexible boom arm. It may be used in applications ranging from live performance vocals and broadcast announcing, to numerous other hands-free operations. The Headset Microphone can be configured to operate with many wireless systems.