iPad mini My Mini stopped squealing

[touchmonkey]

You know, the sound that i devices make when they're plugged into power.
What's up with that? Just started yesterday.
My iPhone and iPad2 still squeal like piglets.

 

[stuaz]

Have you got it muted?...

 

[touchmonkey]

Oooopsie. I had turned the volume up to test it. but somehow didn't turn "sound effects" up.
Thanks.
(I feel like an idiot.)
Good to know you can mute the squeal. It makes me hungry for bacon.