Sport 200 series intercoms were developed specifically for the Light-Sport/Ultralight aircraft categories. Using special internal circuitry, they have been successfully tested at noise levels up to 120 db. Voice Activated & Push to talk Intercom mode makes them ideal for high-noise open-cockpit aircraft. Radio priority assures non-interference with ATC transmissions. Stereo model allows full/partial music muting for intercom use or full mute for radio calls. Unit may be mounted vertically or horizontally using a reversible faceplate. Jacks & pre-wired harness incl. Size: 1″x 2.5″x 4″ deep. 11-32 VDC.