50
CY-VHD9401U/L
CY-VHD9401U/L
51
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10
The Use of Range
These headphones use infrared rays for operation.
Use them within the range shown in the fi gure.
POWER
Infrared receiving
port
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9
IR Wireless Headphones Preparation
Battery Installation
(Inserting/Replacing the Batteries)
Battery Notes
Battery information:
≥
Battery type: Manganese R03, AAA, UM-4 dry
cells (supplied)
≥
Battery life: Approximately 18 hours of continuous
operation under normal use (at room
temperature)
Battery life
POWER indicator
When operation is
possible
Lights up green.
When the battery needs
to be replaced
Dims or fails to light.
To check the remaining battery strength:
The POWER indicator on the right hand earpiece (R)
dims or fails to light when the batteries are weak.
Noise and interference also increase.
Change the batteries if any of these occur.
POWER
POWER
POWER
POWER
POWER
1
Open the battery holder
cover.
As shown in the fi gure, use
the tool such as a slot-head
screwdriver to disengage the
bottom part of the battery
holder cover, and then use
your fi ngers to lift the top part
free.
2
Insert the battery.
Insert the battery in the
correct direction, making sure
that its positive and negative
ends match the same symbols
in the battery holder.
3
Replace the cover.
The cover is fi xed in place
with a click.
POWER
POWER indicator
(Right side)
(Before wearing headphones)
1
Turn the volume on the headphones all the way
down.
2
Press the POWER button.
≥
The POWER indicator lights up.
3
Turn the volume up slowly until you can hear
the sound comfortably and clearly, and without
distortion.
After Use
Press the POWER button to switch off.
Note:
≥
Refer to “When Listening with IR (Infrared)
Wireless Headphones” (page 8).
How to Use the IR Wireless Headphones
POWER
POWER button
Volume
up
Volume
down
Operations (Power and Volume)
Note:
≥
One battery is required for the left and another for
the right side of each headphone.
Caution:
≥
Improper use of the battery may cause
overheating, an explosion or ignition, resulting
in injury or a fi re. Battery leakage may damage
the product.
≥
Do not expose the IR wireless headphones to
direct sunlight.
≥
Do not mix old and new batteries.
≥
Do not use alkaline dry cells or rechargeable
type batteries. (There is the danger of liquid
leakage.)
≥
Do not recharge, disassemble, deform or heat
the battery.
≥
Do not put the battery in fi re or water.
≥
Immediately replace used up battery.
≥
Obey local ordinances when disposing of the
battery.
Note:
≥
Depending on the vehicle model and amount of
charge remaining in headphone batteries, the
actual range of use may be less than what is given
in the fi gures above.
≥
If no infrared signals are received from the
main unit for more than one minute after the
headphones power has been turned on, the
headphones power will be automatically turned
off (auto power function).
1
2
3
* Conditions: The batteries must be fully charged
and in their normal status, room temperature
must be the normal temperature, and there must
be no obstructions between the main unit and IR
wireless headphones.
Plane view:
Approximately
2.5 m {8 feet 2
1
/
2
q
} (Max)*
Approximately
5 m {16 feet 5
q
} (Max)*
Approximately
2.5 m {8 feet 2
1
/
2
q
} (Max)*
Vertical view:
Approximately
2.5 m {8 feet 2
1
/
2
q
} (Max)*
30
x
45
x
45
x
