chakra transmitter

Naruto
There’s no more hiding for Pain. He’s now visible to everyone and the only thing he could do is fight and prevent them from tracing back Nagato’s location. But it’s too late because Naruto has figured it out as well. He came in contact with Pain and all of a sudden, grabbed a chakra transmitter and pinned it to himself. Now he was able to receive signal from Nagato and also able to trace his location.