On the supplied ac power adaptor, Others, Polarity of the plug – Sony DR-BT21iK User Manual
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DR-BT21iK [GB] 3-280-325-12(1)
DR-BT21iK [GB] 3-280-325-12(1)
On the supplied AC power
adaptor
Use the AC power adaptor supplied
with this product. Do not use any
other AC power adaptor since it may
cause the headset to malfunction.
Polarity of the plug
If you are not going to use the AC
power adaptor for a long time, unplug
it from the AC outlet. To remove
the AC power adaptor from the wall
outlet, grasp the adaptor plug itself;
never pull the cord.
Others
Be careful not to pinch your fingers
when folding the headset.
Using the Bluetooth device may not
function on mobile phones, depending
on radio wave conditions and location
where the equipment is being used.
If you experience discomfort after
using the Bluetooth device, stop using
the Bluetooth device immediately.
Should any problem persist, consult
your nearest Sony dealer.
Listening with this product at high
volume may affect your hearing. For
traffic safety, do not use this product
while driving or cycling.
Do not put weight or pressure on this
product as it may cause the product to
deform during long storage.
The ear pads are consumable. They
may deteriorate due to long-term
storage or use. Replace with new ones
if they are damaged.
If you have any questions or problems
concerning this product that are not
covered in this manual, please consult
your nearest Sony dealer.