Bose A20 Headphones: Instructions for Cleaning and Care
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HEADSET CARE AND MAINTENANCE

Instructions for continued airworthiness

Bose recommends following the general care and maintenance instructions in this guide. With normal use, items such as windscreens and ear cushions may require periodic replacement. If cleaning or replacement of these items is needed, follow the recommendations on the following pages. All other care and maintenance, in and out of the warranty period, must be performed by Bose or an authorized repair facility.

CAUTION: Do not immerse the headset in water or any other liquid. If the headset is immersed in liquid, do not use it. Contact Bose® Technical Support for assistance.

Cleaning the headset

General cleaning

Gently wipe the outside surfaces of the headband, connectors, plastic parts, and headband cushion, using a soft cloth moistened with water and mild soap. Take special care when cleaning the ear cushions and the outside surfaces of the earcups. Do not immerse ear cushions in water or any other liquid.

Headset earcup openings

The TriPort® headset opening and the microphone opening must remain clean and free of debris. Check to ensure that the openings on each earcup are clean before each flight.

TriPort headset opening

Microphone opening

When wiping down the headset earcups, be sure not to force any dirt or debris into the openings. Carefully use tweezers, if necessary, to remove foreign matter that may be lodged in the openings. Do not blow air into or vacuum the openings as this may damage the headset.

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Contents A20 Aviation Headset Safety Information Important Safety InstructionsContents Troubleshooting Operational advisory Recognizing aircraft sounds Hearing safetyVolume control Using audio sourcesEarcup inner screen Headset earcup requirementsIntroduction What’s includedWhat’s in the carton Headset assemblyControl module variations Bluetooth control module Conventional control moduleBattery powered options Dual powered options Power and cable variationsAttaching the microphone assembly Microphone assemblyTo change the operation switches Battery compartmentOpening the battery compartment Operation switchesInserting and replacing the batteries Auto Off functionalityTo insert or replace the batteries To disconnect the headset Connecting the headset to the aircraftUsing the 6-pin plug To connect the headsetUsing other plug types Using the dual general aviation plugsWearing and adjusting the headset Microphone placementConditions related to fit Clothing clips Power button Using the control moduleIndicator color Power source Type of light Indicates Power indicatorAudio priority Auxiliary AUX audio inputMultifunction/audio priority switch has three positions Multifunction/Audio priority switchPairing the headset with your phone Using the headset With a Bluetooth-enabled phoneDisconnecting a Bluetooth technology-enabled phone Bluetooth indicator light statusReconnecting to a previously connected phone Recovering a lost connectionTo clear pairing device history from the headset Bluetooth volume controlMaking and answering calls Headset earcup openings Cleaning the headsetGeneral cleaning Instructions for airworthinessHeadband cushion Replacing partsMicrophone windscreen replacement Microphone windscreenEar cushion replacement Battery replacementReplacing the ear cushions Headband cushion replacement Microphone assembly or access cover replacementStorage Case of difficulty Noise ReductionCommunications Audio Auxiliary audio input Auto off Bluetooth wireless technologyMounting the aircraft panel connector Stereo connection diagram Mono connection diagramDetails on making the connections Helicopter U174 connection diagramTechnical Information Condition Category FAA Technical Standards OrderTo return your headset to Bose for repair WarrantyLimited warranty service Locating the headset serial numberContact information Ordering parts and accessoriesService and Warranty Information

A20 specifications

The Bose A20 Aviation Headset is a remarkable piece of technology designed specifically for aviators and aviation enthusiasts. Since its release, it has garnered a reputation for delivering superior sound quality, comfort, and durability. Manufactured by the well-known audio company Bose, this headset integrates cutting-edge features that enhance the flying experience for pilots and passengers alike.

At its core, the Bose A20 boasts advanced noise cancellation technology. It employs an active noise reduction system that effectively eliminates unwanted ambient noise, allowing users to concentrate on their surroundings and communication without distractions. This feature is especially crucial in the noisy environment of an aircraft cockpit, where engine noise levels can be overwhelming. The A20 significantly reduces this noise, enhancing clarity during radio transmissions.

The headset also offers excellent audio performance. With clear and balanced sound reproduction, the A20 ensures that every communication and audio alert is heard without distortion. This is complemented by integrated Bluetooth technology, which enables wireless connectivity to mobile devices. Pilots can easily stream music or receive phone calls while keeping their hands free, further enhancing the headset's functionality.

Comfort is another hallmark of the Bose A20. The headset is designed for long-duration wear, featuring plush ear cushions and a lightweight construction. The adjustable headband allows for a customized fit, minimizing fatigue even during extended flights. Additionally, the A20 is built to withstand the rigors of aviation use, with rugged materials that ensure longevity.

Another standout characteristic is the intuitive controls and design. The headset is user-friendly, with simple buttons that allow pilots to adjust noise cancellation levels and manage Bluetooth connections effortlessly. Furthermore, the inclusion of a detachable audio cable adds versatility, making it compatible with various aircraft and devices.

In conclusion, the Bose A20 Aviation Headset is a top choice for pilots seeking an exceptional combination of sound quality, advanced noise reduction, comfort, and user-friendly features. Its innovative technology and thoughtful design make it a vital tool for anyone serious about aviation, ensuring a more enjoyable and productive flying experience. Whether in a small general aviation aircraft or a larger commercial cockpit, the A20 stands out as a leader in the aviation headset market.
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