Shure SM7B Vocal MicrophoneExtremely popular radio and TV mic that features excellent shielding against electromagnetic hum. Includes a mounting bracket for precise control of mic position. Cardioid, Dynamic. SM7B Vocal MicrophoneThe SM7B dynamic microphone has a smooth, flat, wide-range frequency response appropriate for music and speech in all professional audio applications. It features excellent shielding against electromagnetic hum generated by computer monitors, neon lights, and other electrical devices. The SM7B has been updated from earlier models with an improved bracket design that offers greater stability. In addition to it's standard windscreen, it also includes the A7WS windscreen for close-talk applications.SM7B Includes foam winscreen, close-talk windscreen, locking yoke mount. Extremely popular radio and TV mic that features excellent shielding against electromagnetic hum. Includes a mounting bracket for precise control of mic position. Cardioid, Dynamic. * Flat, wide-range frequency response for exceptionally clean and natural reproduction of both music and speech * Bass rolloff and mid-range emphasis (presence boost) controls with graphic display of response setting * Improved rejection of electromagnetic hum, optimized for shielding against broadband interference emitted by computer monitors * Internal air suspension shock isolation virtually eliminates mechanical noise transmission * Highly effective pop filter eliminates need for any add-on protection against explosive breath sounds, even for close-up vocals or narration * Now shipping with the A7WS detachable windscreen, designed to reduce plosive sounds and gives a warmer tone for close-talk vocals * Yoke mounting with captive stand nut for easy mounting and dismounting provides precise control of microphone position * Classic cardioid polar pattern, uniform with frequency and symmetrical about axis, to provide maximum rejection and minimum coloration of off-axis sound * Rugged construction and excellent cartridge protection for outstanding reliability * Replacement cartridge: RPM106Type DynamicFrequency Response 50 to 20,000 HzPolar Pattern Cardioid (unidirectional)Impedance Microphone impedance rating is 150 ohms (150 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms.Polarity Positive pressure on diaphragm produces positive voltage on pin 2 relative to pin 3.Output Level (at 1,000 Hz)Open Circuit Voltage*: -59.0 dB (1.12 mV)*0 dB = 1 volt per Pascal Electromagnetic Hum Sensitivity (Typical, Equivalent SPL/milliOersted) 60 Hz: 11 dB 500 Hz: 24 dB 1 kHz: 33 dB SwitchesBass rolloff and mid-range emphasis: Slotted response selector switches. See Figure 3 in User Guide for bass rolloff and mid-range emphasis (presence boost) response.Cartridge Shock Mount Internal air-suspension shock and vibration isolator.Microphone Connector Three-pin professional audio (XLR)Swivel Assembly Integrated, captive nut for ease of attachment to stand, fits 5/8 in.-27 thread.Case Dark gray enamel aluminum and steel case with dark gray foam windscreen.Dimensions See User GuideNet Weight 765.4 grams (1 lb, 11 oz)