Denon AH-GC20 User Manual
Contents Preparation Connections
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AH-GC20
GLOBE CRUISER™ Over-ear Headphones/
Wireless Noise-Cancelling Headphones
Owner’s Manual
Operation
Troubleshooting
Appendix
You can print more than one page of a PDF onto a single sheet of paper.
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Contents Preparation Connections
Contents
Operation
Troubleshooting
Appendix
Preparation
Unpacking
Features
Sound quality
Functions
Telephone Calls
Features and functions
Charging
Using Audio Guidance (Notification Sounds)
Connections
Bluetooth operation
Pairing
Registering (Pairing) and connecting a Bluetooth device
Reconnecting paired devices
Deleting pairing information
Turning the power on
Turning the power off
Wearing the headphones
Simultaneously connecting multiple Bluetooth devices (Multipoint
function)
Operation
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Listening to music
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Listening to music using a Bluetooth connection
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Listening to music using a wired connection
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Decreasing outside noise (Noise cancell function)
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Conducting phone calls
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Making a call
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Answering an incoming call
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Ending a call
Using the call waiting function
Ignoring an incoming call
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Switching a call from the headphones to a mobile phone
Other operations
Information
Airplane use
Storage in the carrying case
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Contents Preparation Connections
Troubleshooting
Troubleshooting
Appendix
Precautions for Use
Disposal of these headphones
Trademark information
Specifications
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Operation
Troubleshooting
Appendix
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DENON
Contents Preparation Connections
Preparation
Operation
Troubleshooting
Thank you for purchasing this product. To ensure proper operation, please read this Owner’s Manual carefully before using the product.
Unpacking
Unpack your new AH-GC20 and verify that the following items are included.
Appendix
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Quick Guide Precautions on the use of
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Audio cable (approx. 1.3 m)
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USB cable (for charging: Approx. 0.5 m)
headphones
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Conversion plug for aircraft use 6.3 mm Conversion adapter Carrying case Notes on radio
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Accessory pouch
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Contents Preparation Connections
Features
Operation
Troubleshooting
Appendix
Sound quality
These headphones are compatible with a wide range of codecs,
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including the high sound quality aptX, AAC and SBC. These
headphones automatically select the optimum compatible codec
for your Bluetooth device (smartphone or tablet) so you can
enjoy high-grade wireless sound. Additionally, aptX is Low
Latency compatible so you can enjoy videos and gaming without
audio lag.
Functions
You can enjoy listening to music wirelessly by connecting these
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headphones to your Bluetooth device. Playback operations and
volume adjustment can be performed for the paired audio device
using the headphones.
When the noise cancelling function is turned on, you can hear
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clear audio sound even if you are in a noisy location such as
inside a train.
You can connect to an audio device that is not equipped with
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Bluetooth using the supplied cable, or in case Bluetooth is not
allowed or the battery runs out.
Telephone Calls
You can also make hands-free phone calls by pairing these
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headphones to a Bluetooth compatible mobile phone. Equipped
with CVC (Clear Voice Capture) technology which suppresses
echoes enabling low-noise phone calls.
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Contents
Features and functions
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L/R Indicator
A
Noise cancelling microphone
B
Noise cancelling function toggle switch
C
Turns the noise cancelling function on/off.
Preparation Connections
Operation
Charge/NC (Noise Cancell) indicator
D
Blinks red according to the charging status. (v
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Lights white when the noise cancelling function is on. (v p. 21)
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Charging port
E
Connect the supplied USB cable to charge the headphones.
Stereo mini jack (3.5 mm)
F
Connection socket for the supplied audio cable.
Control button
G
Turns the power on/off and pairs the headphones with Bluetooth
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devices. (v
Operates the audio device that is connected using Bluetooth.
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(v p. 19)
Bluetooth Indicator
H
Indicates the connection status with the Bluetooth device.
Volume button (+/–)
I
Adjusts the volume up and down. (v
Call microphone
J
Call button
K
Controls call operations on the paired mobile phone. (v
Troubleshooting
p. 11)
Appendix
p. 7)
p. 19)
p. 22)
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or
ON
OFF
Contents Preparation Connections
Charging
When using the headphones for the first time after purchase or when the
remaining battery is low, connect the headphones to a computer or a USB
to AC power adapter (not included) using the supplied USB cable.
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The Charge/NC indicator blinks during charging. It takes approximately 3
hours to charge the headphones. (The duration time differs depending on
the charging output.)
Operation
You can connect the headphones to a device using the supplied audio cable to
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enjoy listening to music even if the batteries are drained. (v p. 20)
The headphones can be used for approximately 20 hours of music playback when
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fully charged.
You can listen to music from a paired Bluetooth device or make phone calls even
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during charging. In this case, noise may occur in the audio from the headphones
depending on the type of computer used.
Troubleshooting
Appendix
NOTE
When connecting the USB cable to the charging port, be sure to match the cable
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connector with the shape of the socket. Forcing the connector into the socket will
cause damage.
A rating of the charging output should be DC 5 V, 2.4 A or less.
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The usable time of the headphones differs depending on the temperature of the
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environment in which they are used and method of use.
The power turns off when the USB cable is connected to the headphones during
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use. Turn on the power again to continue using the headphones.
If the usable time of the headphones is extremely short even when fully charged,
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the battery may have reached the end of its lifespan. In this case, please contact
the Denon Customer Service Center (see the back of this manual).
You cannot change rechargeable batteries yourself.
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100 % charged : Lights red
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50 - 99 % charged : Blinks red at 2-second intervals
0 - 49 % charged : Blinks red slowly
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Contents
Checking the remaining battery power
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When the power is on (“Turning the power on” (v p. 15)), press the
Call button twice to check the remaining battery power.
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Remaining battery Indicator Beep sound
90 – 100 % Blinks four times Four times
60 – 89 % Blinks three times Three times
30 – 59 % Blinks twice Twice
10 – 29 % Blinks once Once
The remaining battery power cannot be checked when a phone call is in
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progress.
When the amount of remaining battery is running low, the indicator
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flashes red at three second intervals together with a beeping sound.
If the battery runs out during use, a beeping sound is heard and the
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power of the headphones turns off.
Preparation Connections
Operation
Troubleshooting
Appendix
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Contents
Preparation Connections
Operation
Troubleshooting
Appendix
Using Audio Guidance (Notification Sounds)
You are notified when an operation has completed correctly by a “beep” or “audio guidance”. The default notification sound is a “beep”. You can switch the
notification sound using the following procedure.
Switching to Audio Guidance Mode
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End the audio playback or phone call on connected
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Bluetooth device, or turn off the Bluetooth function of
the connected Bluetooth device.
Press and hold the call button and “+” volume button
2
together for more than 5 seconds.
The beep sound is heard and the notification sound is switched to
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audio guidance.
Switching to beep mode
o
End the audio playback or phone call on connected
1
Bluetooth device, or turn off the Bluetooth function of
the connected Bluetooth device.
Press and hold the call button and “-” volume button
2
together for more than 5 seconds.
The beep sound is heard and the notification sound is switched to
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the beep sound.
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Contents
Switching the Audio Guidance Language
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The audio guidance language can be selected from the following
languages. (The default audio guidance language is “English”)
English, Japanese, Chinese, German, French, Italian, Spanish
Press and hold the call button and control button
1
together.
Audio in each language is played in order while the buttons are
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pressed down.
Release the buttons when the language that you want
2
to select is played.
A message informing you that the settings are complete is heard.
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Preparation Connections
Operation
Troubleshooting
Appendix
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