Electro Voice RE20 Broadcast Announcer Microphone with Variable D AV Toolbox Zip front pocket Featuring a cardioid polar Zip front pocket re clocker steel construction with low handling noise Supercardioid Pattern The RE 20 features a supercardioid polar pattern which is extremely effective in isolating sound sources while reducing background noise Internal Windscreen An internal blast and wind filter eliminates "pop" and wind noise at the closest proximity Bass Tilt Down Switch The "bass tilt down" switch corrects spectrum balance for use in long reach situations and eliminates low frequency noise and rumble Flat Frequency Respone The RE20's flat frequency response remains flat even at extremely close proximities Tailored Response Response tailored especially for vocals with high sound pressure handling capabilities Construction Rugged