Sony DR-BT20NX Operating Instructions Manual page 22

On the supplied AC power
adaptor
• Use the AC power adaptor supplied
with this unit. Do not use any other AC
power adaptor since it may cause the
unit to malfunction.
Polarity of the plug
• If you are not going to use this unit for
a long time, unplug the AC power
adaptor from the AC outlet. To remove
the AC power adaptor from the wall
outlet, grasp the adaptor plug itself;
never pull the cord.
Others
• Do not place this unit in a place
exposed to humidity, dust, soot or
steam, subject to direct sunlight, or in a
car waiting at a traffic signal. It may
cause a malfunction.
• 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.
• Do not allow small children to use this
unit.
• Do not use this unit in a place where it
may be snagged, such as near a
shredder, or machine facility, etc.
• The left and right connectors will
uncouple for safety if excessive
pressure is applied. To reduce the risk
of this unit from falling, avoid
excessive movement.
• Listening with this unit at high volume
may affect your hearing. For traffic
safety, do not use this unit while driving
22
or cycling.
• If the earbuds become wet, wipe it with
a dry towel before using.
• Clean the earbuds by hand-washing
with a mild detergent solution. Remove
the earbuds when you clean them. After
cleaning, dry the earbuds well before
use.
• The earbuds may deteriorate due to
long-term storage or use.
• Do not strain the cord when adjusting
the length, as it may be damaged.
• If you have any questions or problems
concerning this unit that are not covered
in this manual, please consult your
nearest Sony dealer.