Sony PS4 Guide De Sécurité page 8

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.
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)
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
8
[Devices] [Controllers] from 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.
– If using a controller that is connected to the PS4™ system
with a USB cable, make sure there is enough space for the
cable so that the cable will not hit a person or object. Also,
take care to avoid pulling the cable out of the PS4™
system while using the controller.
– Some PlayStation ® , PlayStation ® 2 and PlayStation ® 3
system peripherals such as the analog controller
(DUALSHOCK ® ), the analog controller (DUALSHOCK ® 2)
and the DUALSHOCK ® 3 Wireless Controller are not
compatible with the PS4™ system. For details, visit
www.us.playstation.com.
• Avoid looking into the light bar of the controller when it is
flashing. Stop using the controller immediately if you
experience any discomfort or pain in any body parts.
• Charge in an environment where the temperature range is
between 10 °C - 30 °C (50 °F - 86 °F). Charging may not be as
effective when performed in other environments.
• The battery has a limited lifespan. Battery duration will
gradually decrease with repeated usage and age. Battery
life also varies depending on the storage method, usage
state, environment and other factors.
• When the wireless controller is not used for an extended
period of time, it is recommended that you fully charge it at
least once a year in order to maintain battery functionality.
* These notes may also apply to other controllers.