Sony MV-900SDS Operating Instructions (primary manual) Operating Instructions Manual page 39

Cordless stereo headphones
Replacing the battery
When the battery becomes weak, the POWER
indicator light dims, or sound becomes
distorted or noisy. Replace the battery with
new one as soon as possible.
1
Open the lid (Z OPEN) of the left
housing.
2
Insert the size AAA dry battery into the
battery compartment matching 3
terminal on the battery to 3 on the
compartment.
AAA dry
battery
3
Close the lid (Z OPEN).
Lid (Z OPEN)
Lid (Z OPEN)
Notes on Battery
• Do not charge the dry battery.
• Do not carry the dry battery together with
coins or other metallic objects. It can generate
heat if the positive and negative terminals of
the battery are accidentally come into contact
with metallic objects.
• When you are not going to use the
headphones for a long time, remove the
battery to avoid damage from battery leakage
or corrosion.
• Do not remove the attached label.
• Do not crack the casing.
• Do not drop, or subject to shock.
• Do not solder the terminals.
• Do not leave in an extremely hot or humid
place.
• When storing or discarding, insulate the
terminal portion with tape.
• Do not allow to get wet.
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