Sony PS4 Guide De Sécurité page 8

– Avoid raising the volume to block out noisy
surroundings.
– Lower the volume if you can't hear people speaking
near you.
• Do not use the headset or headphones if they cause
discomfort to your skin. If the headset or headphones
cause discomfort to your skin, discontinue use
immediately. If symptoms do not subside even after
discontinuing use, seek medical attention.
• When using the headset or headphones in particularly dry
air conditions, you may sometimes experience a small and
quick (static) shock on your ears. This is a result of static
electricity accumulated in the body, and is not a
malfunction of your headset or headphones.
About the USB device
If "An unknown USB device has been connected" is displayed
on-screen, the reason may be one of the following:
• The connected USB device is not compatible with the
system.
• The connected USB device is compatible with only some
software titles.
• Too many USB devices are connected to the USB hub.
8
Notes on safety when using the DUALSHOCK ® 4 Wireless
Controller*
• Stop using the system immediately if you begin to feel
tired or if you experience discomfort or pain in your hands
or arms while operating the wireless controller. If the
condition persists, consult a doctor.
• The vibration function of the wireless controller can
aggravate injuries. Do not use the vibration function if you
have any ailment or injury to the bones, joints or muscles
of your hands or arms. If you have an ailment or an injury,
do not use the wireless controller to play software titles
that contain the vibration function unless you first disable
this function.
• Avoid prolonged use of the wireless controller. Take a
break at about 30-minute intervals.
• Note that some software titles enable the vibration
function by default. To disable the vibration function,
select (Settings) > [Devices] > [Controllers] from the
function screen, and then remove the checkmark from
[Enable Vibration].
• When using the motion sensor function of the wireless
controller, be cautious of the following points. If the
controller hits a person or object, this may cause
accidental injury or damage.
– Before using, check that there is plenty of space around
you.
– When using the controller, grip it firmly to make sure it
cannot slip out of your hand.