I can not turn off VoiceOver on iPhone 4S
Turning Voiceover Off


Double-tap the Settings icon on your homepage.
Use three fingers to scroll down to the General menu, and double-click on it.
Use three fingers to scroll down to the Accessibility menu, and double-click on it.  
Double-tap on the VoiceOver menu item.
Turn VoiceOver off


Alternatively, in iTunes you select summary and click Universal Access, then choose either Zoom or Neither rather than VoiceOver.