Chatot Mega Stone

I was wondering where I could find the mega stone to mega evolve Chatot, as well as what its stats are afterwards? Also, does Chatot learn any new sound moves by level up or through the move relearner, considering it has Amplifier as its ability when it megas? The wiki is still being updated, so I couldn’t find any of that info there. Thanks.

You can find the Chatotite at the Pokemon Village (Void Gauntlet).