Squawker

Wristers are communicator devices used by Fusion Fighters and Xros Heart United Army in Digimon Fusion. They are worn around the wrist.

Digimon Fusion
makes nine Wristers which distributes to Mikey Kudo, Angie Hinomoto, Jeremy Tsurgi, and the. When Jeremy is suspended in a giant bamboo spire, Mikey uses the Wrister to communicate his plan to him.

Later, in Canyon Land, Mikey uses the Wrister to tell Nene and to use "Ouroboros Gate" so that they can escape.