(1) CPU speed will be reduced under certain operating conditions.
(2) Can be used as a stereo headphone plug by connecting a 3-pole mini plug headphone. The headphone and mic feature of a smartphone headset can be used by connecting its 4-pole mini plug. Some headsets may not function properly. The remote control feature does not work even on a headset with a remote control. The microphone on a 3-pole mini plug will not work.
(3) Based on VAIO engineering. Actual performance may vary considerably based on hardware configuration, software, power management settings, environmental conditions, wireless connectivity and other factors. Maximum battery capacity will normally decrease with time and use.