Selectable low-cut filtering and high-emphasis active filtering that allow you to tailor the microphone response for optimum voice clarity or DX punch. A multi-axis pivoting mount lets you adjust the horizontal and vertical position of the microphone to accomodate various locations and heights, or you can remove the microphone from the base and use it independently (an auxiliary toggling PTT button is provided, but the audio filering and scan controls cannot be used). The base of the MD-100A8X includes a large push-to-talk (PTT) switch and latching button, along with a large rotary up/down, slow/fast control for scanning. Jacks and cabling are provided to accomodate Yaesu transceivers having either RJ-45 or round 8-pin MIC jacks.