The Azden 1201URXVM Slot-In Portable Wireless Microphone Receiver is designed to mount IDX V-mount slot-in mounts. In addition to the receiver's slot-in design, the 1201-series also offers 188 user selectable, DTV compliant frequencies. True-diversity technology with two complete front-ends and high-gain antennas maximize reception and range while greatly reducing interference and drop-out. The transmitter features a multi-function digital display and rugged construction. 12VDC power is supplied from the camera.