Quick reference guide
Page 1
...For additional information on using the headset with a mobile phone, complete use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. If asked for 5 seconds in the Top or Middle position. 2. This indicates that the headset is the first time... switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom only Pairing the Headset with your phone to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on the phone.** 4. Make sure the headset is powered on, and that has previously been paired with another phone,...
...For additional information on using the headset with a mobile phone, complete use instructions, and important safety information, refer to the supplied Bose A20 Aviation Headset Owner's Guide. If asked for 5 seconds in the Top or Middle position. 2. This indicates that the headset is the first time... switch: Top Intercom prioritized Middle Intercom mixed Bottom Intercom only Pairing the Headset with your phone to "discover" the Bose A20 Aviation Headset Select "BOSE A20" on the phone.** 4. Make sure the headset is powered on, and that has previously been paired with another phone,...
Quick reference guide
Page 2
...® wireless technology is designed to indicate the power status, as follows: Indicator color Power source Type of inactivity. The Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. All other marks ... Default: MONO Power indicator The power indicator changes color to stay securely closed during operation. Note: The battery compartment cover is disabled to use by Bose Corporation is under license. Auto Off function ON, OFF Set at least one second. 2. Mono/Stereo MONO, STEREO Set it for at...
...® wireless technology is designed to indicate the power status, as follows: Indicator color Power source Type of inactivity. The Default: ON headset will not turn off until you press and hold the power button for stereo if your aircraft has a stereo intercom. All other marks ... Default: MONO Power indicator The power indicator changes color to stay securely closed during operation. Note: The battery compartment cover is disabled to use by Bose Corporation is under license. Auto Off function ON, OFF Set at least one second. 2. Mono/Stereo MONO, STEREO Set it for at...
Owner's guide
Page 2
...or transmitter. Operate this equipment off and 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 help. Always include these instructions easily accessible to all users at ... between this equipment. Replace only with the limits for telephone calls. • It is connected. - However, there is subject to the use the headset for a Class B digital device, pursuant to "Contact information" on page 37. • Do not immerse the headphones in relation to ...
...or transmitter. Operate this equipment off and 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 help. Always include these instructions easily accessible to all users at ... between this equipment. Replace only with the limits for telephone calls. • It is connected. - However, there is subject to the use the headset for a Class B digital device, pursuant to "Contact information" on page 37. • Do not immerse the headphones in relation to ...
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
... advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling® technology. In passive noise reducing mode, the volume controls on (power indicator is needed, you can use of communications signal in the headset when used with any ...used in the passive mode when the power is off (power indicator is possible for continued use the intercom or radio volume control. The headset will automatically be set to the aircraft" on page 6. The headset is in the Acoustic Noise Cancelling mode. As with any battery source other than the Bose A20 Aviation Headset...
... advisory The Bose® A20™ Aviation Headset incorporates Acoustic Noise Cancelling® technology. In passive noise reducing mode, the volume controls on (power indicator is needed, you can use of communications signal in the headset when used with any ...used in the passive mode when the power is off (power indicator is possible for continued use the intercom or radio volume control. The headset will automatically be set to the aircraft" on page 6. The headset is in the Acoustic Noise Cancelling mode. As with any battery source other than the Bose A20 Aviation Headset...
Owner's guide
Page 6
...stall warnings or gear up the aircraft communications system volume. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you must be sure to limit the volume to turn up , while piloting. 2 Volume control Make sure your... affects the strength of headset use with your hearing during extended periods of the communications signal coming into the headset. We strongly advise you to in command, you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft....
...stall warnings or gear up the aircraft communications system volume. As pilot in -flight entertainment, or a portable audio source through a Bose A20 Aviation Headset, be sure you must be sure to limit the volume to turn up , while piloting. 2 Volume control Make sure your... affects the strength of headset use with your hearing during extended periods of the communications signal coming into the headset. We strongly advise you to in command, you can hear and recognize these sounds when using the Bose® A20™ Aviation Headset while operating any aircraft....
Owner's guide
Page 12
... 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. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to either earcup. L for left earcup. Attach the... Connector pins CAUTION: Do not force the connector into the socket until it reaches the stop. Note: The headset will not work without the access cover installed. Use a Phillips screwdriver to attach the microphone assembly. 2. Carefully line up the microphone assembly to try the...
... 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. If your headset is shipped with the microphone assembly (boom microphone and cable) attached to either earcup. L for left earcup. Attach the... Connector pins CAUTION: Do not force the connector into the socket until it reaches the stop. Note: The headset will not work without the access cover installed. Use a Phillips screwdriver to attach the microphone assembly. 2. Carefully line up the microphone assembly to try the...
Owner's guide
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... force when pressing down . 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 tethered to the module. Press down firmly on page 10. The operation switches The operation switches control the Auto Off function...
... force when pressing down . 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 tethered to the module. Press down firmly on page 10. The operation switches The operation switches control the Auto Off function...
Owner's guide
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... you to enable the Auto Off function. To insert or replace the batteries 1. Do not detach the door from an intercom, the headset will allow you stop using the headset. Insert the two supplied alkaline AA batteries into the control module, observing proper polarity. 4. Set it takes to shut off until you... Auto Off feature for each switch. 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. Inserting and replacing the batteries CAUTION: If the batteries do not fit correctly, do not force them in to an intercom, it will turn off...
... you to enable the Auto Off function. To insert or replace the batteries 1. Do not detach the door from an intercom, the headset will allow you stop using the headset. Insert the two supplied alkaline AA batteries into the control module, observing proper polarity. 4. Set it takes to shut off until you... Auto Off feature for each switch. 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. Inserting and replacing the batteries CAUTION: If the batteries do not fit correctly, do not force them in to an intercom, it will turn off...
Owner's guide
Page 15
Align keyway Push plug in To disconnect the headset 1. Pull back on page 31. Gently continue pulling back to remove the plug from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Pull sleeve back, then pull plug out Sleeve 11 See "... jack. 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 Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Firmly press the plug into the 6-pin connector provides the...
Align keyway Push plug in To disconnect the headset 1. Pull back on page 31. Gently continue pulling back to remove the plug from Bose to convert a 6-pin connector to a dual G/A plug for additional connection flexibility. Pull sleeve back, then pull plug out Sleeve 11 See "... jack. 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 Connecting the headset to the aircraft The Bose® A20™ Aviation Headset can be installed and mounted to an aircraft panel. Firmly press the plug into the 6-pin connector provides the...
Owner's guide
Page 16
..." on your aircraft control panel. Then insert the thinner microphone plug into one of the jacks. 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. It will only fit into the...jack. 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 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.
..." on your aircraft control panel. Then insert the thinner microphone plug into one of the jacks. 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. It will only fit into the...jack. 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 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.
Owner's guide
Page 17
.... If the problem persists, contact Bose® Technical Support for comfort and optimal noise reduction performance. Your experience with the headset powered on your head, make these adjustments: 13 Conditions related to orient the headset properly. With the headset on in Acoustic Noise Cancelling®...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. Here are a few guidelines: • Use the left (L) and right (R) markings above the earcups to fit A low rumbling...
.... If the problem persists, contact Bose® Technical Support for comfort and optimal noise reduction performance. Your experience with the headset powered on your head, make these adjustments: 13 Conditions related to orient the headset properly. With the headset on in Acoustic Noise Cancelling®...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. Here are a few guidelines: • Use the left (L) and right (R) markings above the earcups to fit A low rumbling...
Owner's guide
Page 18
... or down so it will be slightly off center, the microphone should be /1 2 inch from mouth Mic label is fitted with your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11...
... or down so it will be slightly off center, the microphone should be /1 2 inch from mouth Mic label is fitted with your lips. Use the clips to attach the headset cable to release and reposition clip along the cable 14 Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11...
Owner's guide
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...button 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, and control indicator brightness. • Press the power button once... that has 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 on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the...
...button 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, and control indicator brightness. • Press the power button once... that has 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 on Acoustic Noise Cancelling noise reduction. • Press and hold the power button to control the...
Owner's guide
Page 20
... setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and age of light Indicates Aircraft Battery Battery Battery None Slow flashing Power... Green Amber Red Off Power source Type of the batteries. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET • Double-click the power button to loud sounds may cause hearing damage.
... setting, neither volume control wheel can completely turn off , volume control will generally supply at the headset control module. Battery life varies with the ambient noise level of the aircraft, temperature, ear cushion condition, use of the Bluetooth feature, and age of light Indicates Aircraft Battery Battery Battery None Slow flashing Power... Green Amber Red Off Power source Type of the batteries. Tab 8, 16 Tab 7, 15 Tab 6, 14 Tab 5, 13 Tab 4, 12 Tab 3, 11 Tab2, 10 English USING THE HEADSET • Double-click the power button to loud sounds may cause hearing damage.
Owner's guide
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... 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 to use the headset when unplugged from the intercom to listen to decide the priority ...using the headset. Note: When the headset is located at the bottom end of the adapter cable into an intercom, it will shut off even when there is an auxiliary audio input present. The connector is running on . Plug one end of the control module as shown. Audio priority The Bose A20 Aviation Headset...
... 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 to use the headset when unplugged from the intercom to listen to decide the priority ...using the headset. Note: When the headset is located at the bottom end of the adapter cable into an intercom, it will shut off even when there is an auxiliary audio input present. The connector is running on . Plug one end of the control module as shown. Audio priority The Bose A20 Aviation Headset...
Owner's guide
Page 22
... in the bottom position, only intercom audio is muted. 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...
... in the bottom position, only intercom audio is muted. 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
... order to confirm successful pairing. 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 headset with a Bluetooth®-enabled phone Pairing the headset with your phone Pairing entails having the Bose A20 Aviation Headset in pairing mode, setting your Bluetooth-enabled phone to a cell phone. Turn on the...
... order to confirm successful pairing. 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 headset with a Bluetooth®-enabled phone Pairing the headset with your phone Pairing entails having the Bose A20 Aviation Headset in pairing mode, setting your Bluetooth-enabled phone to a cell phone. Turn on the...
Owner's guide
Page 24
... connect. The Bluetooth indicator on the control module. 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 ended by turning the...
... connect. The Bluetooth indicator on the control module. 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 ended by turning the...
Owner's guide
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... 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET If you turn the headset control module off, the control module Bluetooth wireless technology receiver also turns off, ending the connection to the Bose® A20™ Aviation Headset. Note: Pressing and holding the volume button changes the ...volume continuously. To clear pairing device history from the headset With Bluetooth technology enabled and on (Bluetooth indicator light ...
... 13 Tab 6, 14 Tab 7, 15 Tab 8, 16 USING THE HEADSET If you turn the headset control module off, the control module Bluetooth wireless technology receiver also turns off, ending the connection to the Bose® A20™ Aviation Headset. Note: Pressing and holding the volume button changes the ...volume continuously. To clear pairing device history from the headset With Bluetooth technology enabled and on (Bluetooth indicator light ...