Shotgun Microphone for DSLR & Video Camera "Add high-quality audio to your next video project with this Shotgun Microphone for DSLR Video Camera from Monoprice! This condenser microphone features a super cardioid polar pattern and outputs dual mono audio using an attached 3.5mm TRS plug. It features a frequency response from 40 Hz to 20 KHz and a sensitivity of -40dB plusmn 1dB. It is powered by a 9V alkaline battery (not included) and has an output impedance of less than 200 ohms. A selectable high-pass filter at 80 Hz helps eliminate wind noise."