Quick reference guide
Page 1
...with the Power indicator flash or you are attempting to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on the phone.** 4. This indicates that the multifunction switch (A above ) to put the headset into "discoverable" mode. 3. When pairing is in unison. **Controls ...headset is powered on using the headset with your phone to pair Bluetooth, the Bluetooth indicator will flash in "discoverable" mode and ready to be paired to the supplied Bose A20 Aviation Headset Owner's Guide. If this is in order to activate Bluetooth. Bose® A20™ Aviation Headset...
...with the Power indicator flash or you are attempting to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on the phone.** 4. This indicates that the multifunction switch (A above ) to put the headset into "discoverable" mode. 3. When pairing is in unison. **Controls ...headset is powered on using the headset with your phone to pair Bluetooth, the Bluetooth indicator will flash in "discoverable" mode and ready to be paired to the supplied Bose A20 Aviation Headset Owner's Guide. If this is in order to activate Bluetooth. Bose® A20™ Aviation Headset...
Quick reference guide
Page 2
...Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. Mono/Stereo MONO, STEREO Set it for at the factory to release. You may need to use by Bluetooth SIG, Inc., and any such use additional force ... turn off after 3 to conserve the remaining power once the battery reaches this level. All other marks are registered trademarks owned by Bose Corporation is under license. Basic operating information The battery compartment Press down firmly on the battery compartment cover and slide the cover down and...
...Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. Mono/Stereo MONO, STEREO Set it for at the factory to release. You may need to use by Bluetooth SIG, Inc., and any such use additional force ... turn off after 3 to conserve the remaining power once the battery reaches this level. All other marks are registered trademarks owned by Bose Corporation is under license. Basic operating information The battery compartment Press down firmly on the battery compartment cover and slide the cover down and...
Owner's guide
Page 2
... radiation exposure limits for cleaning instructions. • Warning: Choking hazard. Exposure to radio communications. See "Cleaning the headset" on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for a Class B digital device, pursuant to determine that interference will be...
... radiation exposure limits for cleaning instructions. • Warning: Choking hazard. Exposure to radio communications. See "Cleaning the headset" on to third parties. • During flight operations, do not use of the Bose® A20™ Aviation Headset. • The headset is the maximum legally permissible level for a Class B digital device, pursuant to determine that interference will be...
Owner's guide
Page 3
... 9 Opening the battery compartment 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
... 9 Opening the battery compartment 9 The operation switches 9 Inserting and replacing the batteries 10 Connecting the headset to the aircraft 11 Using the 6-pin plug 11 Using the dual general aviation plugs 12 Using other plug types 12 USING THE HEADSET 13 Wearing and adjusting the headset 13 Conditions related to fit 13 Microphone placement 13 Clothing clips 14...
Owner's guide
Page 5
..., the volume controls on (power indicator is aircraft powered, connect the headset to fail during operation. If additional volume control is needed, you can use of communications signal in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 The headset is in the Acoustic Noise Cancelling mode. Symptoms of failure may...
..., the volume controls on (power indicator is aircraft powered, connect the headset to fail during operation. If additional volume control is needed, you can use of communications signal in the headset when used with any battery source other than the Bose A20 Aviation Headset control module. 1 The headset is in the Acoustic Noise Cancelling mode. Symptoms of failure may...
Owner's guide
Page 6
... the Acoustic Noise Cancelling® mode turned on. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. In this case, you can understand critical communications even with your hearing during extended periods...
... the Acoustic Noise Cancelling® mode turned on. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft. In this case, you can understand critical communications even with your hearing during extended periods...
Owner's guide
Page 12
Use a Phillips screwdriver to loosen the two screws on the access cover near the bottom of debris. 1. Tighten the screws to try the headset and fully test its operation before flight. 8 Insert the screws, then align and tighten them. Also, make sure that does not have the ...you want to either earcup. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 PREPARING THE HEADSET FOR USE English The microphone assembly Your headset may occur. 5. Carefully line up the microphone assembly to reveal the connector pins on the earcup. 4. Attach the access cover to receive...
Use a Phillips screwdriver to loosen the two screws on the access cover near the bottom of debris. 1. Tighten the screws to try the headset and fully test its operation before flight. 8 Insert the screws, then align and tighten them. Also, make sure that does not have the ...you want to either earcup. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 PREPARING THE HEADSET FOR USE English The microphone assembly Your headset may occur. 5. Carefully line up the microphone assembly to reveal the connector pins on the earcup. 4. Attach the access cover to receive...
Owner's guide
Page 13
Opening the battery compartment You must open the battery compartment to use additional force when pressing down and releasing cover. Operation switches To change any of the operation switches, skip ahead to "Inserting and replacing the batteries" ... 1. Open the battery compartment. 2. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is designed to remain securely closed. The cover is tethered to detach it. Do not attempt to the module. The operation switches...
Opening the battery compartment You must open the battery compartment to use additional force when pressing down and releasing cover. Operation switches To change any of the operation switches, skip ahead to "Inserting and replacing the batteries" ... 1. Open the battery compartment. 2. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE The battery compartment The Bose® A20™ Aviation Headset is designed to remain securely closed. The cover is tethered to detach it. Do not attempt to the module. The operation switches...
Owner's guide
Page 14
... and is not plugged in to enable the Auto Off function. Note: To use the headset when unplugged from the intercom to listen to auxiliary input audio or as a Bluetooth® wireless technology-enabled headset to make or receive calls, we recommend you disable the Auto Off feature for...replace the batteries 1. Do not detach the door from an intercom, the headset will allow you stop using the headset. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE 3. The following table shows possible positions, default setting, and purpose for ...
... and is not plugged in to enable the Auto Off function. Note: To use the headset when unplugged from the intercom to listen to auxiliary input audio or as a Bluetooth® wireless technology-enabled headset to make or receive calls, we recommend you disable the Auto Off feature for...replace the batteries 1. Do not detach the door from an intercom, the headset will allow you stop using the headset. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE 3. The following table shows possible positions, default setting, and purpose for ...
Owner's guide
Page 15
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. See "Mounting the aircraft panel connector" on the sleeve near the end of the 6-pin plug...
... Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 PREPARING THE HEADSET FOR USE Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. See "Mounting the aircraft panel connector" on the sleeve near the end of the 6-pin plug...
Owner's guide
Page 16
... 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE Using the dual general aviation plugs The most common battery powered (only) version of the headset has two general aviation (G/A) plugs that connect to various aircraft audio jacks. Then insert the thinner microphone plug ...types of plugs for connecting to the aircraft audio. Insert the thicker intercom plug in first. Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. Refer to "Power and cable...
... 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English PREPARING THE HEADSET FOR USE Using the dual general aviation plugs The most common battery powered (only) version of the headset has two general aviation (G/A) plugs that connect to various aircraft audio jacks. Then insert the thinner microphone plug ...types of plugs for connecting to the aircraft audio. Insert the thicker intercom plug in first. Microphone Intercom/Audio Using other plug types The Bose® A20™ Aviation Headset is shorter, thinner, and has a slightly different shape than the intercom plug. Refer to "Power and cable...
Owner's guide
Page 17
...relieved by adjusting the headband position. If the problem persists, contact Bose® Technical Support for instructions on removing blockages. Your experience with the headset powered on in Acoustic Noise Cancelling® as the headset compensates for a momentary pressure change. Microphone placement Microphone placement is... performance. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Wearing and adjusting the headset Proper fit on your head is important for clear communications. Make your head, make these adjustments: 13 With the...
...relieved by adjusting the headband position. If the problem persists, contact Bose® Technical Support for instructions on removing blockages. Your experience with the headset powered on in Acoustic Noise Cancelling® as the headset compensates for a momentary pressure change. Microphone placement Microphone placement is... performance. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Wearing and adjusting the headset Proper fit on your head is important for clear communications. Make your head, make these adjustments: 13 With the...
Owner's guide
Page 18
... cable is level with two clothing clips. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Though it is fitted with your lips. Pull the microphone in . Make...
... cable is level with two clothing clips. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET 1. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Though it is fitted with your lips. Pull the microphone in . Make...
Owner's guide
Page 19
...Auxiliary (AUX) audio input Audio Priority switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom only *Control the intercom volume Power button Use the power button to turn Acoustic Noise Cancelling® on or off Acoustic Noise Cancelling noise reduction. 15 There are two variations ...basic functions only. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn off , and control indicator brightness. • Press the power button once to turn on Acoustic Noise Cancelling ...
...Auxiliary (AUX) audio input Audio Priority switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom only *Control the intercom volume Power button Use the power button to turn Acoustic Noise Cancelling® on or off Acoustic Noise Cancelling noise reduction. 15 There are two variations ...basic functions only. English Tab 2, 10 Tab 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Using the control module Use the control module to turn off , and control indicator brightness. • Press the power button once to turn on Acoustic Noise Cancelling ...
Owner's guide
Page 20
...Even at its lowest setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of the right earcup. The...) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to adjust volume of power for the headset. Volume control The left earcup. • Use the right wheel to conserve the remaining power once the battery reaches this level. 16 Holding the control module upright...
...Even at its lowest setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. Overall headset volume control requires adjustments at both the aircraft intercom or radio and at least 45 hours of the right earcup. The...) None Power OFF or batteries depleted * Bluetooth wireless technology is disabled to adjust volume of power for the headset. Volume control The left earcup. • Use the right wheel to conserve the remaining power once the battery reaches this level. 16 Holding the control module upright...
Owner's guide
Page 21
... 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Auxiliary (AUX) audio input The Bose® A20™ Aviation Headset provides a /1 8 inch (3.5 mm) AUX audio input that allows you disable the Auto Off feature for uninterrupted functionality. To use the headset when unplugged from the intercom to listen to auxiliary input audio or...
... 3, 11 Tab 4, 12 Tab 5, 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET Auxiliary (AUX) audio input The Bose® A20™ Aviation Headset provides a /1 8 inch (3.5 mm) AUX audio input that allows you disable the Auto Off feature for uninterrupted functionality. To use the headset when unplugged from the intercom to listen to auxiliary input audio or...
Owner's guide
Page 22
Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET Multifunction/Audio priority switch The multifunction/audio priority switch has three positions: Position Top Function Intercom prioritized over AUX Operation When the switch is in ...
Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET Multifunction/Audio priority switch The multifunction/audio priority switch has three positions: Position Top Function Intercom prioritized over AUX Operation When the switch is in ...
Owner's guide
Page 23
... Connect, or Bluetooth Devices. (Refer to the owner's instructions that has previously been paired with your phone Pairing entails having the Bose A20 Aviation Headset in the list of the battery. If the light is red, the battery is in the top or middle position, NOT in... successful pairing. When Bose A20 appears in pairing mode, setting your Bluetooth-enabled phone turned on the charge level of devices, select and confirm this is unsuccessful, repeat steps 3 - 5 above. 19 If pairing is the first time you use your Bose® A20™ Aviation Headset with your phone for...
... Connect, or Bluetooth Devices. (Refer to the owner's instructions that has previously been paired with your phone Pairing entails having the Bose A20 Aviation Headset in the list of the battery. If the light is red, the battery is in the top or middle position, NOT in... successful pairing. When Bose A20 appears in pairing mode, setting your Bluetooth-enabled phone turned on the charge level of devices, select and confirm this is unsuccessful, repeat steps 3 - 5 above. 19 If pairing is the first time you use your Bose® A20™ Aviation Headset with your phone for...
Owner's guide
Page 24
...Bluetooth technology is pairing. No light Bluetooth technology is a blue light on the control module. Recovering a lost , the Bose A20 Aviation Headset automatically attempts to one Bluetooth wireless technology device at the same rate with each power indicator flash. It shows the status of...device. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET Note: The Bose A20 Aviation Headset will exhibit a fast double flash initiated at each power indicator flash. Bluetooth® indicator light status The Bluetooth indicator is not ...
...Bluetooth technology is pairing. No light Bluetooth technology is a blue light on the control module. Recovering a lost , the Bose A20 Aviation Headset automatically attempts to one Bluetooth wireless technology device at the same rate with each power indicator flash. It shows the status of...device. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET Note: The Bose A20 Aviation Headset will exhibit a fast double flash initiated at each power indicator flash. Bluetooth® indicator light status The Bluetooth indicator is not ...
Owner's guide
Page 40
...on page 26. and 3. Reference this serial number when you register your headset using the following procedures: 1. Contact the Bose organization in your country/region (visit Global.Bose.com for Bose contact information in your country/region) for technical support. Place any necessary ...6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 SERVICE AND WARRANTY INFORMATION English Locating the headset serial number Your Bose® A20™ Aviation Headset is covered by a limited 5-year warranty. Warranty period Your Bose A20 Aviation Headset is identified by pressing down firmly.
...on page 26. and 3. Reference this serial number when you register your headset using the following procedures: 1. Contact the Bose organization in your country/region (visit Global.Bose.com for Bose contact information in your country/region) for technical support. Place any necessary ...6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 SERVICE AND WARRANTY INFORMATION English Locating the headset serial number Your Bose® A20™ Aviation Headset is covered by a limited 5-year warranty. Warranty period Your Bose A20 Aviation Headset is identified by pressing down firmly.