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This product employs capacitive touch control switch.
Please use
CE or FCC certified
USB power cable plug.
Electricity signal of some power supplies may be too noisy
for the switching function of the device. In case like this,
please change to another USB power supply socket or test
the plug with USB port of PCs.
Notes for using the product in a vehicle
：
The battery of some vehicles keeps on discharging
even after the
engine has stopped
. In case like this,
power OFF this product
to prevent it exhaust and
damage the battery.
The USB power supply port of some vehicles may fail
to turn OFF the touch control switch. Please use a
cigarette lighter – USB port
exclusive adapter to
prevent this from occurring.
Do not press
the upper edge of the washable filter
with
heavy articles or your body as this may
deform
the filter or
cause personal injury
.
Please
dry
the
filter
before replacing it in the device or the
latter's
circuit may get damaged
by a wet filter.
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