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HBO226 Bose A20 Headset with 6-pin LEMO, Non-Bluetooth, Coiled Cable, Flex, Hi Imp (324843-R040)

Product description:

Commercial Airline Pilot and Flight Instructor appreciation program

We appreciate your interest in the Bose A20 Aviation Headset and the Commercial Airline Pilot and Flight Instructor appreciation program. The program’s intent is to thank you for purchasing the Bose A20 Aviation Headset and your service and commitment to the aviation community. We hope you enjoy the A20’s unmatched combination of acclaimed noise reduction, comfortable fit and clear audio, along with some of the features like streaming audio for use with a variety of flight data apps or to listen to music.

In order to qualify for the Bose Commercial Airline Pilot and Flight Instructor appreciation program you need to be an active commercial pilot with an airline that holds an AOC, or an active flight instructor with FI rating. Please complete the form below before purchasing the Bose A20 Aviation Headset from one of our official authorised Aviation Contract sales partners in the EMEA & India region, and upload scan copies of the following documents:

  • For commercial airline pilots: A complete copy (all pages) of your ATPL/CPL and a current copy of your airline ID.
  • For flight instructors: A complete copy (all pages) of your ATPL/CPL/PPL indicating Flight Instructor (FI) rating and a copy of a recent logbook page (not older than 6 months).

Upon receipt of above information we will contact you within 5 working days to confirm eligibility for the EUR 100,- (incl. VAT) appreciation program rebate towards the purchase of a new Bose A20 Aviation Headset from any official authorised Bose Aviation Contract sales partner in the EMEA & India region. – CLICK HERE TO SUBMIT FORM –

This headset includes a coiled cable, an electret microphone and a standard control module. Designed for aircraft owners who prefer an installed, aircraft powered headset, the 6-pin self-latching plug is inserted into the panel connector of an installed wire harness. Enable the auto-on toggle switch and the headset will turn on automatically when your avionics panel is turned on. Two AA alkaline batteries can also be used with the optional dual plug adapter if the headset is being used in aircraft that require dual GA plugs. High impedance (General Aviation).

Key features:

  • Audio prioritisation controls.
  • Wired aux audio input.
  • Flexible power circuitry.
  • Automatic shut-off.
  • Operates on 10-32 VDC.

Plug in. Turn on. Go flying.

The A20® Aviation Headset is engineered to be more comfortable and provide more noise reduction than any headset we’ve ever made, while still delivering the clear audio you expect from Bose. And now there are more optional features than ever, including: a Bluetooth® audio and communications interface; customisable audio prioritisation control; intuitive “plug-and-play” operation; a high-performance microphone and an optional coil cord. And at just 340 grams, it’s still one of the lightest active noise cancelling headsets out there. No other headset offers this unique combination of features and benefits.

  • 30% greater active noise reduction than conventional aviation headsets
  • 30% less clamping force than conventional aviation headsets
  • Clear audio with active equalisation
  • Customisable audio prioritisation control lets you mute an audio signal when receiving a communication, or mix the two together*
  • Simple, intuitive headset operation—plug it in, turn it on, go flying*

Enjoy a peaceful, comfortable flight

Proprietary technologies in the A20® Aviation Headset reduce noise across the full spectrum of human hearing, even in loud environments. Advanced electronics use microphones inside and outside the earcup to sense and reduce ambient sound. Bose® ear cushion technology helps further reduce unwanted noise. Innovative cushion materials block sound before it enters the earcups, providing an even quieter headset experience.

Clear audio for music and communication 

Bose Active EQ keeps the audio clear and distinct, whether you’re listening to music or an important communication.

Simple, intuitive operation

Plug-and-play convenience* means the headset is ready to fly when you are, without you having to press a lot of buttons first just to activate it.

Enhance your experience

The ergonomic control module includes an auxiliary audio input with Intercom/AUX priority switching, ideal for dedicated GPS and traffic warning systems. It also features a customisable audio prioritisation control with “mute” and “mix” settings, and flexible power circuitry with auto-on that switches seamlessly to and from battery power and aircraft power. Selected models also include Bluetooth® connectivity for taking calls or listening to music.

For all types of aircraft

The A20® Aviation Headset is available in dual plug, 6-pin plug and U174 plug models and a variety of configurations designed for use in all types of general aviation aircraft, including helicopters.

*Features available in certain variants of the headset.

More features 

  • TriPort® acoustic headset structure, available only from Bose, produces tonally balanced audio from relatively small and lightweight headphones
  • Certified to FAA TSO-C139, EASA ETSO-C139
  • Adjustable powered microphone can be connected to either earcup and set in a range of stable positions for optimal communications
  • Smart shutoff helps provide at least 45 hours of use from just two AA alkaline batteries
  • Five-year transferable limited warranty covers parts, labour and return shipping expenses for non-abuse malfunctions.


  • Height: 21.40 cm
  • Width: 16.10 cm
  • Depth: 8.00 cm
  • Weight: 340.00 grams

Included items

  • A20® Aviation headset
  • In-line clothing clip
  • Control module
  • 2 AA alkaline batteries
  • Aux-in cable adapter
  • Carrying case.

£758.33 £910.00 inc. VAT (20%)*

Approximate currency conversions (for reference only)

€913,03 €1 095,64 including VAT (20%)*

*VAT is not charged for deliveries outside the EU