What lets people communicate with the trinkets called phones. Mortals of the Near Shore are adept to it. We gods and shinki have the BBS also powered by it.

Aye, it's like circular brooms if they sucked the dust instead of dragging it. I don't think animals need it, it's just them and their owners having some fun. [He imagines puppies and kitties jousting in these knife vacuums. It'd be either funny or terrifying.] Huh, my previous dog would love this cursed variety.