Sony PlayStation Vita PCH-1008 Safety Manual page 10

Cleaning the connectors
Do not allow dust or dirt to build up around the PS Vita system
connectors, the AC Adaptor, the USB cable connectors or
accessory connectors. Dirty connectors may prevent signals
from being sent or received properly and can result in fire or
electrical shock. If the headphone connector is dirty, you may
experience sound interruptions. Clean all connectors by wiping
with a dry, soft cloth.
Contact with other objects
Observe the following precaution so that the surface of the
PS Vita system does not become discoloured or damaged:
Do not allow the system to remain in direct contact with rubber
or vinyl products for an extended period of time.
Battery life
The built-in battery has a limited life span. Battery duration will
decrease with repeated usage and age.
Hint
Battery life span varies depending on how the battery is stored and
on the conditions of use, including long-term environmental factors
such as temperature.
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