The Spy Set (スパイセット Supai Setto) is a complete reconnaissance gadget set. The set is a robot head whichfunctions as the core and monitor, the eye as the camera, and an ear as a bug (Covert listening device). The Spy Set features long distance reconnaissance devices, instead of sending a subjective scout or (hence) 'spy'.
The whole Spy Set looks like a head of a robot with one eye and a left ear. The 'head' has an antenna, which receives transmissions from the eye and ear. Both eye and ear are detachable, and can levitate around. They are small enough to slip into a person's house. The 'mouth of the head' can be opened and functions as the monitor.