Preparation Connections Operation Troubleshooting Appendix . Contents AH-GC20 GLOBE CRUISER™ Over-ear Headphones/ Wireless Noise-Cancelling Headphones Owner’s Manual You can print more than one page of a PDF onto a single sheet of paper.
Contents Preparation Connections Operation 4 5 5 5 5 6 7 9 Listening to music Listening to music using a Bluetooth connection Listening to music using a wired connection Decreasing outside noise (Noise cancell function) Conducting phone calls Making a call Answering an incoming call Ending a call Using the call waiting function Ignoring an incoming call Switching a call from the headphones to a mobile phone Other operations Information Airplane use Storage in the carrying case Connections Bluetooth op
Contents Preparation Connections Operation Troubleshooting Troubleshooting 26 Appendix Precautions for Use Disposal of these headphones Trademark information Specifications 28 29 29 30 3 Troubleshooting Appendix
Contents Preparation Connections Operation Troubleshooting Appendix 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. Quick Guide . Precautions on the use of headphones Audio cable (approx. 1.3 m) . USB cable (for charging: Approx. 0.5 m) . . Conversion plug for aircraft use 6.
Contents Preparation Connections Operation Troubleshooting Appendix Features Sound quality Telephone Calls 0 These headphones are compatible with a wide range of codecs, 0 You can also make hands-free phone calls by pairing these 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.
Contents Preparation Connections Operation Troubleshooting Appendix Features and functions qw w D Charge/NC (Noise Cancell) indicator 0 Blinks red according to the charging status. (v p. 7) 0 Lights white when the noise cancelling function is on. (v p. 21) q E Charging port Connect the supplied USB cable to charge the headphones. F Stereo mini jack (3.5 mm) Connection socket for the supplied audio cable.
Contents Preparation Connections Operation Troubleshooting Appendix 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. 0 You can connect the headphones to a device using the supplied audio cable to enjoy listening to music even if the batteries are drained. (v p.
Preparation Contents Connections Operation o Checking the remaining battery power When the power is on (“Turning the power on” (v p. 15)), press the Call button twice to check the remaining battery power. L . R 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 0 The remaining battery power cannot be checked when a phone call is in progress.
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. o Switching to Audio Guidance Mode 2 Press and hold the call button and “+” volume button together for more than 5 seconds.
Contents Preparation Connections Operation o Switching the Audio Guidance Language 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 1 Press and hold the call button and control button together. 0 Audio in each language is played in order while the buttons are pressed down. Release the buttons when the language that you want to select is played.
Contents Preparation Connections Operation Troubleshooting Appendix Bluetooth operation Pairing Registering (Pairing) and connecting a Bluetooth device You need to register (pair) a Bluetooth device with the headphones in advance in order to enjoy listening to wireless music or make phone calls. You can connect to a Bluetooth device any time after it has been paired. 1 Turning on Bluetooth on your mobile device NOTE Pairing needs to be done again in the following cases.
Contents Connections Operation 3 When the headphones power is off, press and hold the control button for approximately 4 seconds Troubleshooting Appendix Select “DENON AH-GC20” from the list of devices displayed on the screen of your Bluetooth device Push DENON AH-GC20 4 Sec . 0 The Bluetooth indicator flashes red and blue alternately indicating .
Contents 4 Preparation Connections Operation Troubleshooting Appendix Reconnecting paired devices Playing back music on the Bluetooth device Music played back on the connected Bluetooth device is output from the headphones. 1 Turning on Bluetooth on your mobile device 0 If the power is on, turn the power off before pairing. 0 The headphones pairing registration mode is cancelled if pairing is not completed within 3 minutes.
Contents 3 Preparation Connections Operation Troubleshooting Appendix Deleting pairing information The headphones automatically connect via Bluetooth to the Bluetooth device Delete pairing information if you have made a mistake entering pairing information or when re-pairing a device. If the device is not connected, select “DENON AH-GC20” from the list of devices displayed on the screen of your Bluetooth device.
Contents Preparation Connections Operation Turning the power on Appendix Turning the power off Turn on the Bluetooth function of the Bluetooth device that you want to connect to beforehand. 1 Press and hold the headphones control button for approximately 1 second Press and hold the control button for more than 5 seconds Push Push 1 Sec . 5 Sec 0 A beep sound is heard and the Bluetooth indicator lights purple .
Contents Preparation Connections Operation Wearing the headphones Adjust the slider to the preferred length. L . R NOTE 0 Be careful not to trap your fingers, etc. in the moving parts. 0 Do not pull the slider too forcefully. 0 In order to hear the best quality sound, be sure that the ear pads correctly cover both the left and right ears.
Contents Preparation Connections Operation Simultaneously connecting multiple Bluetooth devices (Multipoint function) 2 Troubleshooting Turn off the Bluetooth function of the headphones and then register (pair) the 2nd Bluetooth device Two Bluetooth devices can be simultaneously connected to the headphones, but of these only one device can be used to listen to music or make phone calls at any time.
Contents Connections Operation Troubleshooting Appendix o Switching Bluetooth playback devices Turn on the Bluetooth function of the 1st Bluetooth device, and select “DENON AH-GC20” from the list of devices displayed on the screen 1 2 Stop or pause playback on the current playback device Start playback on the device that you want to listen to o Call standby Simultaneous call standby is possible, but the device that receives the call first takes priority. Calls cannot be made simultaneously.
Preparation Contents Connections Operation Troubleshooting Appendix Listening to music Select track When using the headphones wirelessly, make sure the Bluetooth function is set to ON for the Bluetooth device. (For details, see the Owner's Manual of the Bluetooth device that you connected.) Next track: Slide in the B direction (towards back of the head) Previous track: Slide in the C direction (towards face) Listening to music using a Bluetooth connection w e .
Contents Preparation Connections Operation Troubleshooting Appendix Listening to music using a wired connection 0 These headphones are compatible with SCMS-T content security standards. You can use these headphones with SCMS-T compatible mobile phones or devices. 0 In order to listen to music via a Bluetooth connection, the connected Bluetooth device needs to be A2DP (Advanced Audio Distribution Profile) compatible.
Contents Preparation Connections Operation Decreasing outside noise (Noise cancell function) Turn the noise cancelling function toggle switch on. . FF ON O The Charge/NC indicator lights white when the switch is turned on.
Contents Preparation Connections Operation Troubleshooting Appendix Conducting phone calls Calls can be made while you are wearing the headphones. You can hear the caller’s voice through the headphones, and your voice is picked up by the built-in microphone in the headphones. The paired Bluetooth compatible mobile phone is controlled using the Call button. Answering an incoming call When an incoming call is received, audio playback is paused and the ring tone is heard.
Contents Preparation Connections Operation Using the call waiting function Appendix Ignoring an incoming call If you receive a call while another call is already in progress, you can place the current call (call A) on hold and switch to the new call (call B). Press and hold the call button for approximately 3 seconds when an incoming call is received. Switching a call from the headphones to a mobile phone NOTE Some of mobile phones may not be compatible with these functions.
Contents Preparation Connections Operation Other operations Incoming call detected Answer In standby mode/ During audio playback Voice dial/ Press and hold the call Voice activated call button Call in progress Press the call button once End call Press the call button once Mute on/off Press the call button twice 0 Press the volume button to adjust the volume of the caller’s voice.
Contents Preparation Connections Operation Troubleshooting Appendix Information Storage in the carrying case Airplane use Remove the cable and plug from the headphones, fold and insert them into the case. Use the supplied audio cable and conversion plug for aircraft use in order to listen to the on-board audio services on an aircraft. NOTE NOTE 0 The supplied conversion plug may not be usable depending on the type of aircraft.
Contents Preparation Connections Operation Troubleshooting Appendix Troubleshooting If the headphones do not operate correctly, first check the following items. Symptom Cause / Solution Page The Bluetooth function of the headphones does not switch on. 0 Connect the headphones to a computer using the supplied USB cable to charge the battery. 7 Cannot pair a Bluetooth device. 0 Move the Bluetooth device that you want to connect closer to the headphones. － Cannot connect using Bluetooth.
Contents Preparation Connections Symptom Operation Troubleshooting Appendix Cause / Solution Cannot operate the Bluetooth 0 Remove the cable from the headphones if the headphones and Bluetooth device are connected using a device using the headphones. cable. The Bluetooth function of the headphones is automatically turned off when the headphones are connected using a cable. 0 The headphones are reset when the supplied USB cable is connected to the headphones.
Contents Preparation Connections Operation Troubleshooting Appendix Precautions for Use 0 Be sure to read the Owner’s Manual of the device that you want to connect. 0 Check the volume settings when using the headphones on public transport or in public places and make sure you do not disturb people around you. 0 These headphones are not guaranteed to work with all combinations of Bluetooth devices/mobile phones. 0 These headphones do not support connection with all Bluetooth devices/mobile phones.
Contents Preparation Connections Operation Disposal of these headphones Troubleshooting Appendix Trademark information . The rechargeable battery built into these headphones can be recycled. Contact the Denon Customer Service Center for details on disposing of these headphones. . The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by D&M Holdings Inc. is under license.
Contents Preparation Connections Operation Specifications o Headphone section Type: Dynamic type Drive units: 40 mm Input impedance: 100 Ω/ohms (Power on) Sensitivity: 102 dB/mW Maximum input: 1,000 mW Playback frequency: 5 – 40,000 Hz o Bluetooth section Compatible standards: Bluetooth 4.0 dual mode Transmission power: Max.
Contents Preparation Connections Operation Troubleshooting o General Operating temperature range: Power supply: Weight: 5 ℃ - 40 ℃ DC 3.7 V (internal lithium polymer rechargeable battery) 275 g z For purposes of improvement, specifications and design are subject to change without notice.
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