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CY-VHD9500U

CY-VHD9500U

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10

The Use of Range

Plane view:

45

e

45

e

Approximately 
5 m (Max)*

Approximately 
2.5 m (Max)*

Approximately 
2.5 m (Max)*

Vertical view:

30

e

Approximately 
2.5 m (Max)*

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 Wireless  

Headphones” (page 10).

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. (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 temperature, and there must be no 
obstructions between the main unit and IR wireless 
headphones.

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