Sennheiser ACCENTUM Over-Ear Wireless Headphones (Black) - Manual (Page 3)

Important safety instructions
ACCENTUM | 3
Safety instructions for Lithium rechargeable batteries
Notes on data collection and processing and on firmware updates
This product stores individual settings such as the volume, the
sound profiles and the Bluetooth connection data of paired devices.
This data is required for the operation of the product and is not trans-
ferred to Sonova Consumer Hearing GmbH or companies commis-
sioned by Sonova Consumer Hearing GmbH and is not processed.
WARNING
If abused or misused, rechargeable batteries may leak. In
extreme cases, they may even present a risk of:
• explosion
• heat and fire development
• smoke and/or gas development
• damage to health and/or the environment
Only use rechargeable batteries and chargers recom-
mended by Sonova Consumer Hearing.
Do not leave the product / rechargeable batteries unat-
tended while charging.
Only charge the product / rechargeable batteries at
ambient temperatures between 10 °C and 40 °C/50 °F
and 104 °F and do not charge them near easily flamma-
ble objects.
Do not charge the product / rechargeable batteries in a
damp environment. Make sure that the charging socket
is free from moisture and contamination.
Do not heat the product / rechargeable batteries above
60 °C/140 °F. Avoid exposure to sunlight and do not
throw the product / rechargeable batteries into fire.
Switch rechargeable battery-powered products off after
use.
When not using the product / rechargeable batteries for
extended periods of time, charge them regularly (about
every three months).
Avoid prolonged skin contact with the product,
rechargeable battery, charger or charging cable when
connected to a power source. These components can
heat up during charging and cause skin irritation.
Dispose of defective products with built-in rechargeable
batteries at special collection points or return them to
your specialist dealer to facilitate recycling.