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Only use rechargeable batteries and chargers
recommended by Sennheiser.
Charge products with built-in rechargeable batteries at
ambient temperatures between 10 and 40°C/50 and
104°F.
Do not heat above 60 °C/140 °F, e.g. do not expose to
sunlight or throw into fire.
When not using the product for extended periods of
time, charge its built-in rechargeable battery regularly
(about every 3 months).
Switch rechargeable battery-powered products off after
use.
Dispose of defective products with built-in rechargeable
batteries at special collection points or return them to
your specialist dealer.
Important safety instructions
IE 80S BT | 3
Notes on data collection and processing and on firmware updates
This product stores individual settings such as the volume and the
Bluetooth addresses of paired devices. This data is required for the
operation of the product and is not transferred to Sennheiser or com-
panies commissioned by Sennheise
r and is not processed.
Using the “Sennheiser Smart Control” app, you can update the firm-
ware of the product for free via an Internet connection. If the device
on
which the app is installed is connected to the Internet, the follow-
ing data is automatically transferred to and processed by Sennheiser
se
rvers in order to provide and transfer suitable firmware updates:
MAC address, Bluetooth Low Energy UUID, Bluetooth name of the
product, firmware version of the product and version of the app. The
data will only be used as specified and will not be stored perma-
nently.
If you do not want this data to be transferred and processed, do not
c
onnect to the Internet.
Intended use/Liability
These headphones have been designed as an accessory for Blue-
tooth compliant devices. They are intended for wireless audio com-
munication such as music playback an
d phone calls via Bluetooth
wireless technology.
It is considered improper use when the product is used for any appli-
cation not named in the corresponding product documentation.
Sennheiser does not accept liability for damage arising from misuse
or improper use of this pr
oduct and its attachments/accessories.
Sennheiser is not liable for damages to USB devices that are not con-
sistent with the USB specifications. Sennheiser is not liable for dam-
ages resulting from the loss of connection
due to flat or overaged
rechargeable batteries or exceeding the Bluetooth transmission
range.
Before putting into operation, please observe the respective coun-
try-specific regulations.
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