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Dynex USB headset with microphone • 

DX-840 

Casque d’écoute USB avec microphone Dynex 
Auriculares USB con micrófono Dynex 

Using the headset

Installing your headset

To install your headset

Plug the USB connector into an available external USB port. On 
most computers, drivers install automatically and your headset 
will be ready to use.
If you are prompted with the 

Add New Hardware Wizard

, follow the steps to download and install the driver.

Testing your headset

To test your headset

1.   Plug in your headset.
2.   Start the Sound Recorder application (Click 

Start

, then select 

All Programs

Accessories

Entertainment

).

3.   Click 

Record

 and speak into the headset for 5 – 10 seconds.

4.   Click 

Stop

, then 

Play

. If you can hear your recording through the headset, it is working correctly.

Adjusting the volume

You can adjust the volume by turning the volume knob on the headset, or using the Windows volume control in the 
Control Panel. Your computer may also have volume buttons to adjust the Windows volume control.

Troubleshooting

If your headset does not function correctly, try the following:
•   Make sure your headset is properly plugged into a USB port.
•   Make sure the volume is set to a medium level, and is not muted.
•   Make sure that your headset is set as the preferred audio and recording device:

1.   In the Control Panel, open the 

Sounds and Audio Devices 

window.

2.   Click the 

Audio

 tab.

3.   Set the default device for sound playback and sound recording to 

USB Audio Device

.

4.   Click 

Use only default device

s.

5.   Click 

OK

.

Legal notices

FCC statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the 
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. 
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not 
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can 
be determined by turning the equipment off  and on, the user is encouraged to try to correct the interference by one or more of 
the following measures:
•   Reorient or relocate the receiving antenna.
•   Increase the separation between the equipment and receiver.
•   Connect the equipment into an outlet on a circuit diff erent from that to which the receiver is connected.
•   Consult the dealer or an experienced radio/TV technician for help.
ICES - Canada’s Interference-Causing Equipment Standards This equipment complies with the applicable technical standards of 
ICES 003:1997 in accordance with the measurement procedures specifi ed in CISPR22-96.
Copyright © 2007 Dynex. DYNEX and the DYNEX logo are trademarks of Best Buy Enterprise Services, Inc. Other brands and 
product names are trademarks or registered trademarks of their respective holders. Specifi cations and features are subject to 
change without notice or obligation.

One Year Limited Warranty

For complete warranty go to www.dynexproducts.com. 

Utilisation du casque d’écoute

Installation du casque d’écoute

Pour installer le casque d’écoute

Branchez le connecteur USB sur un port USB externe 
disponible. Sur la majorité des ordinateurs, les pilotes s’installent 
automatiquement et votre casque d’écoute sera prêt à être utilisé.
Si l’Assistant ajout de nouveau matériel (

Add New Hardware Wizard

) s’affi

  che, suivez les étapes pour télécharger et 

installer le pilote.

Test du casque d’écoute

Pour tester le casque d’écoute

1.  Branchez le casque d’écoute.
2.  Démarrez l’application Sound Recorder [Magnétophone] (Cliquez sur 

Start

 [Démarrer] puis sélectionnez 

All 

Programs 

[Tous les programmes], 

Accessories

 [Accessoires], 

Entertainment

 [Divertissement]).

3. Cliquez sur 

Record

 (Enregistrer) et parlez dans le casque d’écoute pendant cinq à 10 secondes.

4. Cliquez sur 

Stop

 (Arrêter) puis sur 

Play

 (Lecture). Si vous pouvez entendre votre enregistrement en utilisant le 

casque d’écoute, ce dernier fonctionne correctement.

Réglage du volume

Vous pouvez régler le volume en tournant le bouton du volume du casque d’écoute ou en utilisant le contrôle de 
volume de Windows dans le Panneau de confi guration (Control Panel). Votre ordinateur peut également avoir des 
boutons de réglage du volume.

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