Features 1. A heavy diecast base and bronze element casing make the MD-1 a particularly durable, heavy-duty microphone for base station use. 2. The large dynamic element provides an extremely wide range audio response, and an internal switch is then used to select that portion of the audio spectrum that one chooses to emphasize, attenuating the lower frequencies according to the user’s choice. 3. Output impedance may be selected via an internal switch, 600 or 50K ohms. 4. A dual pivoting mechanism allows both horizontal and vertical rotation to accommodate various locations and heights, while the microphone can also be easily separated from the base to provide for those situations where a hand-held microphone is most convenient. (If the microphone is electrically disconnected and used totally independently from the base, only 600 ohms impedance without scanning control is possible.) 5. The base of the MD-1 includes a large PTT switch bar and lock switch, as well as scanning UP, DOWN, and FAST switches.* The microphone contains a PTT slide switch (only).