Donnie hands over the phone. He really doesn't expect the other two to accept his decision but arguing about it isn't going to expedite things. Besides, he hasn't said any specifications of his own abilities, just that he was more technically oriented. He's sure Leo'd be even more uncertain about his offering Nulls any assistance if the need comes up, not that Donnie's felt the need to mention it.

He doesn't know too much about the phone but it looks pretty up to date from what he'd inspected of it. In any case, Oliver had said that GPS would just make it easier, not impossible. So he turns his attention to the careful network of geometric shapes that have been drawn.