[ For a moment he's scared she might have picked up on his ability that he never told her of, but when he hears her speak outside the building as well as through the tablet, he gets what she's still trying to demonstrate.

For a second, he thought about letting her know, but at the same time he was still feeling awkward talking about his own abilities and didn't want to scare her as well, so... ]

Oohh... This is really cool! Gosh, not even having wires and you can call from anywhere?? Do you know how it all works, Cyan-chan?