The Electro-Voice RE27N/D is a dynamic cardioid multipurpose microphone that delivers studio-quality condenser performance from a self-generating dynamic transducer. It has a switch-selected EQ; internal shock, pop, and wind protection; and exceptional sensitivity for high signal-to-noise ratio. Wide-range uniform frequency response: 45Hz-20kHz. Sensitivity: -51dB @ 1,000Hz. 3-year warranty. Requires phantom power. Electro-Voice RE27N/D Dynamic Cardioid Multipurpose Microphone Features: * Dynamic cardioid microphone * Reduces proximity effect to maintain uniform LF response at any distance * 3 switchable filters: one high frequency, 2 low frequencies, and an internal blast/wind filter cover * 3-year warranty