Linex was three-and-a-half-feet tall, had shoulders that could rotate and two arms with elbows and wrists that swiveled. He could pivot and move around on wheels. His chest contained a propane tank filled with compressed air to move his limbs. His memory was a reel-to-reel tape recorder, which was linked to a remote-control unit improvised from a walkie-talkie. Linex was controlled by signals transmitted through the walkie talkie.