Silvercrest SKBT 4 B2 Operating Instructions Manual page 9

WARNING! Risk of hearing damage
Set a low volume on the audio device before you connect the headphones
to the sound source.
Avoid excessive volumes, particularly over extended periods or in the
case of frequent use. Excessive volume can result in permanent hearing
damage.
DANGER from the battery
The device is provided with a lithium polymer battery.
- The battery cannot be removed.
- This device must not be opened.
- Completely dispose of the device.
Because of the high power consumption, do not charge the head-
phones through a laptop / PC. Only charge the headphones via a USB
power unit (min. 750 mA, not included in the items supplied).
When using a USB power unit, the wall socket used must always be
easily accessible so that, in a dangerous situation, the USB power unit
can be disconnected quickly from the wall socket. Observe also the
user instructions of the USB power unit.
Do not use the device if there is visible damage to the housing or the
USB charger cable.
This device must not be thrown into fire. DANGER OF EXPLOSION!
The device must not be covered while the battery is charged.
The device must only be charged in a dry environment.
Foreign bodies must not be inserted into any of the components of the
headphones.
Do not expose the device to direct sunshine or heat. The ambient tem-
perature should not be lower than 10 °C or higher than 40 °C. Please
remember that in a car the storage temperature may significantly ex-
ceed 40 °C.
The battery may only be charged with the original accessory (USB
charger cable).
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