A20® Aviation Headset

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 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 coiled cable. And weighing just 340 g, it's still one of the lightest active noise cancelling headsets out there. No other headset offers this unique combination of features and benefits.

More Details

Product Information

Product Details
Brand: Bose
Model:A20®
Warranty: 5 Years (Headset Services Limited is the authorised Warranty Repair Centre)
Dimensions:21.4 cm H x 16.1 cm W x 8 cm D (340 g)
Includes: In-line clothing clip, 2 AA batteries, Aux-in cable adapter and Carrying case
Features

The A20® Aviation Headset has 30% greater active noise reduction and 30% less clamping force than conventional aviation headsets. Clear audio with active equalisation and Bluetooth® audio and communications interface for connectivity with your communications and navigation devices. Customisable audio prioritisation control lets you mute an audio signal when receiving a communication, or mix the two together and a simple, intuitive headset operation—plug it in, turn it on, go flying.

The A20® headset gives you 30% greater noise reduction than conventional aviation headsets, so you’ll enjoy a peaceful flight from short stops to long hauls. And at just 340g, with sheepskin cushions and minimal clamping force, it’s one of the lightest and most comfortable aviation headsets you’ll find. All designed to let you focus on what matters—flying.

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 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, XLR5 Plug, 8-Pin Fischer and U174 plug models and a variety of configurations designed for use in all types of general aviation aircraft, including helicopters.

More features
  • Coiled cable down-cable now available in selected configurations
  • Certified to FAA TSO-C139 and 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 delivery expenses for non-abuse malfunctions

 




Power Cable Plugs Bluetooth
Battery Straight Twin No

A20® Headset Cable, Twin Plug


Code: 327070-2020

This battery-powered dual-plug straight cable features a high-performance electret microphone with a standard control module. In addition, it includes a wired audio input and audio prioritisation controls to customise the pilot’s or passengers’ experience. The dual-plug connectors are the most popular configuration and are used in a variety of general and commercial aircraft. The boom microphone and cable can be mounted to the left or right ear cup.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries
  • Shielded straight cable for greater EMI resistance



Power Cable Plugs Bluetooth
Battery Straight Twin Yes

A20® Headset Cable, Twin Plug, Bluetooth®


Code: 327070-3020

This battery-powered, dual plug straight cable features a high-performance electret microphone with a customisable Bluetooth® audio and communications interface. In addition, it includes a wired audio input and audio prioritisation controls to customise the pilot’s or passengers’ experience. The dual plug connectors are the most popular configuration used in a variety of general and commercial aircraft. The boom microphone and cable can be mounted to the left or right earcup.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries (Bluetooth® use may reduce battery life)
  • Shielded straight cable for greater EMI resistance
  • Full-function Bluetooth® capability provides Bose® quality sound



Power Cable Plugs Bluetooth
Flex Straight XLR5 No

A20® Headset Cable, XLR5 Plug


Code: 327070-2070

This flex-powered straight cable includes an electret microphone with a standard control module. Compatible with most Airbus aircraft. When aircraft power is detected, the headset automatically turns on and switches from battery power to aircraft power.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Audio prioritisation controls with multiple customisable settings
  • Automatic shutoff to preserve battery life
  • Popular for most types of Airbus aircraft
  • Certified to FAA TSO C-139, EASA ETSO-C139



Power Cable Plugs Bluetooth
Flex Straight XLR5 Yes

A20® Headset Cable, XLR5 Plug, Bluetooth®


Code: 327070-3070

This flex powered straight cable features an electret microphone with a Bluetooth® audio and communications interface. When aircraft power is detected, the headset automatically turns on and switches from battery power to aircraft power.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Audio prioritisation controls with multiple customisable settings
  • Automatic shutoff to preserve battery life
  • Popular for most types of Airbus aircraft
  • Certified to FAA TSO C-139, EASA ETSO-C139



Power Cable Plugs Bluetooth
Flex Straight 6 Pin Lemo No

A20® Headset Cable, 6 Pin Lemo Plug


Code: 327070-2040

This straight cable includes an electret microphone with 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. Two AA alkaline batteries can also be used with the optional dual plug or single-pin U174 adapter, allowing the headset to be used in other types of aircraft.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Audio prioritisation controls with multiple customisable settings
  • Metal connectors for robust and durable performance
  • Popular on many new and homebuilt aircraft
  • Wired aux audio input



Power Cable Plugs Bluetooth
Flex Straight 6 Pin Lemo Yes

A20® Headset Cable, 6 Pin Lemo Plug, Bluetooth®


Code: 327070-3040

This straight cable includes an electret microphone with a Bluetooth® audio and communications interface. 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. Flexible power circuitry with auto-on allows the headset to turn on automatically when your avionics panel is turned on, and switch seamlessly from battery power to aircraft power without compromising headset performance. Two AA alkaline batteries can also be used with the optional dual-plug or single-pin U174 adapter, allowing the headset to be used in other aircraft types.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Audio prioritisation controls with multiple customisable settings
  • Metal connectors for robust and durable performance
  • Popular on many new and homebuilt aircraft
  • Wired aux audio input
  • Full-function Bluetooth® capability provides Bose® quality sound



Power Cable Plugs Bluetooth
Flex Coiled 6 Pin Lemo Yes

A20® Headset Cable, 6 Pin Lemo Plug, Bluetooth®


Code: 327070-T040

This coiled cable includes an electret microphone with a Bluetooth® audio and communications interface. 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. Flexible power circuitry with auto-on allows the headset to turn on automatically when your avionics panel is turned on, and switch seamlessly from battery power to aircraft power without compromising headset performance. Two AA alkaline batteries can also be used with the optional dual-plug or single-pin U174 adapter, allowing the headset to be used in other aircraft types.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Auto-on feature automatically turns on A20® when aircraft power is detected
  • Audio prioritisation controls with multiple customisable settings
  • Metal connectors for robust and durable performance
  • Popular on many new and homebuilt aircraft
  • Wired aux audio input
  • Full-function Bluetooth® capability provides Bose® quality sound



Power Cable Plugs Bluetooth
Battery Straight U174 No

A20® Headset Cable, U174 Plug


Code: 327070-2030

This battery-powered, single-pin U174 plug cable features an electret microphone with a control module. This configuration is popular on many helicopter types.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Straight cable
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries
  • Automatic shut-off



Power Cable Plugs Bluetooth
Battery Straight U174 Yes

A20® Headset Cable, U174 Plug, Bluetooth®


Code: 327070-3030

This battery-powered, single-pin U174 plug cable features an electret microphone with a control module featuring a Bluetooth® audio and communication interface. This configuration is popular on many helicopter types.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Straight cable
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries (Bluetooth® use may reduce battery life)
  • Full-function Bluetooth® capability provides Bose® quality sound



Power Cable Plugs Bluetooth
Battery Coiled U174 No

A20® Headset Cable, U174 Plug


Code: 327070-R030

This battery-powered, single-pin U174 plug cable features an electret microphone with a control module. This configuration is popular on many helicopter types and is available with a coiled cable.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Coiled cable
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries



Power Cable Plugs Bluetooth
Battery Coiled U174 Yes

A20® Headset Cable, U174 Plug, Bluetooth®


Code: 327070-T030

This battery-powered, single-pin U174 plug cable features an electret microphone with a control module featuring a Bluetooth® audio and communication interface. This configuration is popular on many helicopter types and is available with a coiled cable.

  • Industry-leading active noise reduction with clear audio and comfortable fit
  • Coiled cable
  • Audio prioritisation controls with multiple customisable settings
  • At least 45 hours of battery life from two AA batteries (Bluetooth® use may reduce battery life)
  • Full-function Bluetooth® capability provides Bose® quality sound



Socket Type Cable Length Plug Type
6 Pin Lemo 20cms Approx. Twin

Bose Adaptor


Code: 327080-0010

Converts your 6-pin connector to a dual G/A plug for additional connection flexibility.



Socket Type Cable Length Plug Type
6 Pin Lemo 20cms Approx. U174

Bose A20 Adaptor


Code: 327080-0020

Converts a 6-pin connector to a U174 plug, allowing the A20® headset to be used in helicopters. No tools required. Keyed locking mechanism prevents accidental unplugging. Robust wire strain relief and over-mould for better durability.




Bose Headset Carry Case


Code: 327077-0010

Transport your headset in this black carry bag made of lightweight, abrasion-resistant cordura nylon. Use as a replacement for a lost carry bag. Features a carry handle and padded storage for headset and control module.


  • Code: 327070-2020
    Power Cable Plugs Bluetooth
    Battery Straight Twin No

  • Code: 327070-3020
    Power Cable Plugs Bluetooth
    Battery Straight Twin Yes

  • Code: 327070-2070
    Power Cable Plugs Bluetooth
    Flex Straight XLR5 No

  • Code: 327070-3070
    Power Cable Plugs Bluetooth
    Flex Straight XLR5 Yes

  • Code: 327070-2040
    Power Cable Plugs Bluetooth
    Flex Straight 6 Pin Lemo No

  • Code: 327070-3040
    Power Cable Plugs Bluetooth
    Flex Straight 6 Pin Lemo Yes

  • Code: 327070-T040
    Power Cable Plugs Bluetooth
    Flex Coiled 6 Pin Lemo Yes

  • Code: 327070-2030
    Power Cable Plugs Bluetooth
    Battery Straight U174 No

  • Code: 327070-3030
    Power Cable Plugs Bluetooth
    Battery Straight U174 Yes

  • Code: 327070-R030
    Power Cable Plugs Bluetooth
    Battery Coiled U174 No

  • Code: 327070-T030
    Power Cable Plugs Bluetooth
    Battery Coiled U174 Yes

  • Code: 327080-0010
    Socket Type Cable Length Plug Type
    6 Pin Lemo 20cms Approx. Twin

  • Code: 327080-0020
    Socket Type Cable Length Plug Type
    6 Pin Lemo 20cms Approx. U174

  • Code: 327077-0010
    Bose Headset Carry Case


As the authorised UK and European Warranty Repair Centre for the Bose, we are able to offer a range of hygiene parts for the Bose A20® Aviation Headset to include the headpad, ear seals and microphone windsock.


  • Code: 327079-0010
    Ear Cushions [Pair]

  • Code: 016003
    Microphone Windsock

  • Code: 327078-0010
    Head Pad



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