Auto power on/off function When you remove the headphones, the power turns off automatically. Do not pull up the self adjusting band when not using the headphones, otherwise the headphones will be switched on.

Mute function

If a hissing noise is heard when the infrared rays are obstructed, or the headphones are used outside of the effective range (see the next section), the mute function will be activated and the sound will not be heard from the headphones. To restore the sound, move nearer toward the transmitter or remove the obstruction.

If no audio signal is received at the transmitter for more than approximately five minutes, the transmitter turns off automatically.

After listening to a program, take the headphones off before the transmitter turns off and rest them on the transmitter.

Otherwise you may hear some noise when the infrared rays are suddenly cut off.

Note

The infrared emitters light up when the transmitter is turned on. The brightness of the emitters may not be uniform, however, this is not a malfunction.

The effective areas of the transmitter

The illustration below shows the approximate area covered by the infrared rays emitted from the transmitter.

Transmitter

Infrared ray

 

Approx. 3 m

 

(118 1/8in.)Approx. 7 m

 

 

 

 

(23 ft.)

Approx. 3 m

 

(118 1/8

in.)

 

Notes

•If you use the headphones at too great a distance from the transmitter, you may hear a hissing noise and if there is an object between the receiver and the transmitter, the sound may be interrupted. These phenomena are inherent to infrared ray communication and do not mean that there is a problem with the unit itself.

•Do not cover the infrared sensors with your hands or hair.

•The infrared rays will not penetrate walls or opaque glass, therefore, be sure to stay within sight of the transmitter.

•When you use the headphones inside the area illustrated in the diagrams, the transmitter can be placed in the front, behind or by the side of the listener.

9