Designed for touring and live-sound applications, the Crown CM311E is a rugged head-worn microphone with unequalled performance. It sounds like the best handheld microphones - full, clear, and distortion-free, even with the loudest singers. The CM311E is the latest version of the Crown's proprietary Differoid technology. Its cardioid pickup pattern rejects sounds from the rear, such as floor monitors. Its noise-canceling ability rejects sounds at a distance, such as instruments on stage and crowd noise. This results in the CM311E having outstanding gain-before-feedback and isolation. Lightweight and comfortable, the mic's headband and boom adjust to fit any singer. An included pop filter greatly reduces breath noise and pops. Because of the boom's unique behind-the-ear design, it does not cover up the singer's face.