The Microphone Madness BSM-8 is a binaural in-ear stereo microphone. The microphone is designed and worn like headphones to achieve the most accurate stereo placement possible. The 1/8" connection is completely compatible with microphone inputs found on MiniDiscs, Dat recorders and analog portable recorders that supply a bias voltage of 1.5 to 10VDC (also known as plug in power). The microphone provides a signal response that features smooth mid-range, and clean high frequency response for maximum detail.