Flightcom IISX 4-Place Portable Intercom

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Part# 11-08710


The IIsx is the world’s most popular 4-place, portable intercom. The modular design offers expansion capability to the backseat if needed.
  • Expandable to 4-place portable with
    optional SR-4 expansion module
  • Auxiliary inputs and outputs for music or
    recording flight information
  • Low-battery indicator and pilot isolate
  • Uses aircraft power or 9-volt battery

Flightcom IISX 4 place includes:
• IISX Intercom
• Cigarette lighter adapter
• Co-pilot transmit cable

Flightcom IISX 4 place includes:
• All parts in the 2 place
• SR-4 expansion module

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Weight: 10.5 oz
  • Length: 4-1/4"
  • Width: 2-3/6"
  • Height: 2-5/16"
  • Two-year Warranty
  • Frequently Purchased With
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Easy to install and works great. Transmission and receive are clear.

Rondel A Verified Purchase


November 3, 2023

Works well as an emergency comm system in our tour operation.

Aidan A Verified Purchase


June 8, 2023

Great product. Works as advertised and volume is much better than product it replaced.

Robert J Verified Purchase


November 5, 2022

Works fine. Clear.

Robert M Verified Purchase


August 19, 2021

Im using this intercom in my GXV. Which is a loud truck. I have not road tested it yet but have tested it at an idle static run. So far so good. Cant beat it for the price. Ill review it later after I drive to Flagstaff. I know I wont like all the cables hanging about, but thats a matter of time untill I run them properly.

April 24, 2017

Update: I have flown with this unit for a year now. The sound quality is as good as any in the GA planes I have flown. The isolation switch does not allow you to hear yourself in your headset when transmitting, which I was a bit disappointed with, but overall a good unit for the price. I would recommend this to others.

July 9, 2019

I have not used this in flight yet, but it worked great in my living room with my wife. The plate will mount to an area right next to the ashtray in my Cheetah. No complaints.

October 29, 2017

Overall I was disappointed in this unit and have replaced it. Audio quality wasn't great compared to the PMA 1000II installed in the plane that only has two active inputs. It was functional but had a lot of static background noise whenever the mics were in use. Disconnecting the FLIGHTCOM SR4 expansion unit seem to help but not eliminate this. The unit also has not auto muting functionality so if you're playing music in the aux input it continues to play on top of any radio comms. I have a 2 place intercom in my airplane and this unit didn't work alongside it while plugged into the copilot plugs because I could not hear anyone else talking. I didn't base my rating on this not working as it would have been a nice to have option, not a requirement of the functionality.

Todd D
January 13, 2015


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will the FlightCom IISX 4 Place Portable Intercom work with cell phone?

The IISX has one input for music and one output for a recorder. It does not have cell ability as you will need a cell phone adapter for your headset.

Q: Hello, I am currently using AVCOMM AC1000 ANR headphones. they have 2 jacks near the control module. Will this intercom is compatabile with the headphones that i am using?

Yes this is designed to work with GA plugs.

Q: does this item include the push to talk switch for both pilot and co pilot ? the photo does not show the 3rd and 4th location module, is it included?

This does not have a PTT on the unit, you would need to use something like part #: 11-07712. This includes the SR-4 expansion module box for the 3rd and 4th jacks.

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