The Azden SMX-30 was engineered to be the ultimate video microphone with outstanding audio quality, appealing design, ergonomic form factor and all of the functional features one expects in a top-of-the-line, camera-mounted microphone. Stereo and mono recording modes Level adjustment: -10dB, 0dB, +20dB +20dB gain booster alleviates noise produced by low-quality camera preamps -10dB pad for loud sound environments Low-cut filter selectable at 120Hz, 3dB/octave Operates on (2) AA batteries Low noise, high sensitivity, wide frequency response 10 year warranty with registration Custom, detachable foam windscreen Integrated shock-absorbing shoe-mount with 1/4"-20 thread Battery indicator LED light 3.5mm stereo mini-jack output Stereo or Mono? Why Choose? If you only have the budget to buy one microphone for your camera, why should you have to choose between mono or stereo? The SMX-30 is stereo/mono switchable, so you don't have to. Housed inside an innovative casing, the SMX-30 is actually two microphones packaged into one. The stereo microphone is positioned at the top and consists of 2 cardioid polar pattern microphone elements spaced apart at a 120° angle for capturing a natural sounding stereo image. The mono microphone uses a super-cardioid polar pattern to focus on sound in front of the camera and is equipped with the same high-quality element as Azden's SGM-250 shotgun microphone.