What did Mob know about those new phones? Not much other than what the Telepathy Club members told him. And when they did talk about their phones, they mostly just talked about the games they were playing. Mob was sure that that wouldn't be enough to convince Master Reigen.

But there was one thing that he recalled them saying.

"There's supposed to be a tracker on some of the newer phones that allows you to track the phone owner. If I got lost in the forest like I did last time, you wouldn't have to search as much to find me."