| Fountain Pen Listening Device | |
|---|---|
 Max listens in on his fountain pen. | |
| Seen in | Episode #4: "Our Man in Toyland" |
| Kind of device | Surveillance |
| Organization | CONTROL |
| Used by | Maxwell Smart |
Listening device built into a fountain pen. The transmitter is contained within the removable cap.
[Episode #4: "Our Man in Toyland".]