Micro-bug

The robo-bug is a technology from the cartoon portion of the Generation One continuity family.

The robo-bug is a Cybertronian technology used for covert spying. It consists of a small camera lens and an internal antenna capable of streaming live video across large distances.

Fiction

The Transformers (cartoon)

Ravage planted one on Bumblebee in a simulated fight. The bug then proceeded to relay sensitive information about Wheeljack's new invention, which the Decepticons then turned against the Autobots. It was never seen again after that. The Immobilizer