The KA 134 stands only 1 inch tall, preserving your precious cockpit space. 100% solid state, this reliable unit can control up to 5 receivers and 3 transceivers. The push button functions make it easy to choose the audio source you want. The KA 134 comes with an internal amplifier to run your cabin speakers. You can integrate it with a 550 ohm output audio system. It includes audio isolation and functions as an intercom. It also allows you to address passengers or people on the ramp. Pair it with the KR 22 marker beacon receiver/lights.