Microphone does not work .
USB WL Adapter is not
recognised on the input
device.
Bluetooth® device fails or has no range, or noise is heard .
There is interference with
other devices.
Batteries are empty
Other devices are paired.
Signal transmission is
disturbed.
The Bluetooth® signal may
be impaired by obstacles
between the hands-free
device and the USB WL
Adapter.
USB transmission faulty
No audio output .
There is no Bluetooth®
connection.
Please also observe the troubleshooting information in
the operating instructions of the Bluetooth® device used.
CLEANING AND MAINTENANCE
• Use a soft cloth moistened with alcohol cleaner to
clean the USB WL Adapter. Make sure that no liquid
enters the USB connector.
• Do not use cleaners containing solvents, as these can
damage the surface.
USB WL Adapter
► Make sure that the audio
settings in the operating
system are correct.
► Make sure that the input
device is set to the USB
WL Adapter.
► If necessary, adjust
the settings in the
communication app
used.
► Keep your distance
from WLAN routers and
microwave ovens.
► Do not stand between
the playback device
and the beyerdynamic
Bluetooth® device.
► Charge the Bluetooth®
device.
► Set unwanted paired
devices to Bluetooth®
OFF.
► Unplug the USB WL
Adapter and plug it
back in. Wait for the
connection process.
► Reset the USB WL
Adapter to factory
settings and pair again.
► Reduce the distance
between the USB
WL Adapter and the
Bluetooth® device and
avoid obstacles.
► Connect the USB WL
Adapter to another USB
port on the input device.
► Make sure that the
Bluetooth® device has
been successfully paired
with the USB WL Adapter.
DISPOSAL
This symbol on the product, in the user
manual or on the packaging means that
your electrical and electronic devices must
be disposed of separately from household
waste at the end of their life cycle. There
are separate collection systems for
recycling in the EU.
► For further information, please contact
your local authorities or the dealer
where you purchased the product.
Returning batteries is free of charge.
EU DECLARATION OF
CONFORMITY
beyerdynamic hereby declares that this radio
transmission device complies with the EU Directive
2014/53/EU.
► The full text of the EU declaration of conformity can be
found on the Internet at: www.beyerdynamic.com/cod
TECHNICAL DATA
ISM band frequency range
Transmitting power
Length x width x height (mm)
Weight
► You can find more detailed information about the
technical data online at: www.beyerdynamic.com/
usb-adapter.html#product-downloads
WARRANTY CONDITIONS
beyerdynamic provides a limited warranty for the original
beyerdynamic product you have purchased.
► You can find detailed information about
beyerdynamic's warranty conditions on the Internet at:
www.beyerdynamic.de/service/garantie
REGISTERED TRADEMARKS
Windows is a registered trademark or trademark of
Microsoft Corporation in the United States of America or
other countries.
iPhone, iPod touch, iPad, macOS and Mac are trademarks
of Apple Inc. registered in the United States and other
countries.
Android is a trademark of Google LLC.
The Bluetooth® word mark and logos are registered
trademarks of Bluetooth® SIG, Inc. and any use of such
marks by beyerdynamic under licence. Other trademarks
and trade names belong to their respective owners.
USB type A, USB type B and USB type C are trademarks of
USB Implementers.
Cleaning and maintenance
2.400 to 2.4835 GHz
2.5 mW (Class 2)
31 x 17 x 6
3 g
9/10