Sony VAIO VGN-TT Series Operating Instructions - Hardware Manual page 84

Using Peripheral Devices >
Using the Noise Canceling Headphones
Before You Use the Noise Canceling Headphones
❑ You can enable the noise canceling function only when the supplied noise canceling headphones are connected to the
headphones jack that supports this function.
❑ The noise canceling function does not work on sound output with the following devices:
❑ External speakers
❑ Headphones without the noise canceling function
❑ Sound output devices connected to your computer via a Bluetooth connection
❑ The noise canceling function cannot be fully in effect unless you properly wear the headphones. Be sure to fit earpieces
of the headphones tightly into your ears.
If you feel that the noise canceling function has little effect, adjust the earbud position in the earpieces of the noise
canceling headphones or replace the earbuds with a pair in another size. A pair of medium-size earbuds is attached to
the earpieces by default and there should be an extra pair in each small and large sizes supplied with the headphones.
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