The Smith-victor SM1 stereo microphone is a stereo X/Y condenser microphone which produces broadcast quality sound featuring a two step high pass filter, adjustable sound attenuation, rugged, reinforced ABS construction to reduce weight when mounted on a camera, 3.5mm mini jack output with a wide frequency range and excellent signal to noise ratio. A shock mount is also included. It requires 2 alkaline AAA batteries, not included.