Sony DR-BT21IK/B Operating Instructions Manual page 35

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.
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