Sony SVT11213CXB - Manual (Page 84)

Note
Turn down the volume of the speakers before turning them on.
Your headset may not work correctly with your VAIO computer.
An external microphone does not work if you connect it to the headset compatible
headphone jack
.
The remote of your headset does not work with your VAIO computer.
Hint
Refer to the manual that came with your speakers, headphones, or headset.
Connecting External Speakers/Headphones/Headset
You can connect external sound output devices (such as speakers, headphones, or a headset)
to your VAIO computer.
Use a Sony smartphone compatible headset (not supplied) to make an Internet call and voice
chat.
1. Connect external speakers, headphones, or a headset to the headset compatible
headphone jack ( Parts and Controls on the Sides ).
Note