Portable A-4000 Aviall Intercoms offer four-way communication and are ideal for aviation headset users.

•Separate squelch and volume controls.
•Voice activated.
•Powered by two 9 volt batteries.
•Cigarette lighter adapter cord for optional power source.
•Auxiliary audio input capabilities.
•Voice activated.
•14-28 volt compatibility
•Dimensions 5" x 4" x 1"

2 Years Limited Warranty