can i turn off voice control?

If you mean Siri - go to Settings>General>Siri>Off

If you mean VoiceOver ....remember that a double-tap acts like a single tap and you need to use three fingers to scroll when VoiceOver is on:

Press Home.

Tap Settings. Then double-tap Settings.

Tap General. Then double-tap General.

Use three fingers on the screen to scroll to Accessibility.

Tap Accessibility. Then double-tap Accessibility.

Tap VoiceOver. Then double-tap VoiceOver.

Tap "On" next to VoiceOver. Then double-tap "On" to turn it off.

I apologize. You did say Voice Control but so many people say one thing and mean something else. And you are in the iPad forum, not the iPhone forum.

For a very quick Google search, I don't know if you can turn it off. Look at sberman's response here.

https://discussions.apple.com/thread/4686704?start=0&tstart=0

You are welcome to post anywhere but more likely to get more refined help in the iPhone forum. Ask about it in here and good luck!

Using iPhone