The MG Series gooseneck system is equipped with a sophisticated dual preamp circuitry - one circuit located in the capsule housing and the other built into the base of the XLR. This circuitry is internally balanced, insuring the audio path will be isolated from hum and noise. In addition, this circuitry provides protection from RF interference and spurious emissions from cell phones and wireless GSM devices. The MG15 is a professional miniature gooseneck condenser microphones designed for applications such as podium, presentation, meetings and teleconferencing. The MG mics are designed with a uniformly controlled cardioid polar pattern, helping to isolate the speaker from ambient noise. These models are also available in a hypercardioid polar pattern. With a wide frequency range of 60Hz - 19kHz, the MG provide natural sound with exceptional vocal response.