Vintage Style Remote Control Piston Action Robot Tin Toy A very cool Robby the Robot Repro. Corded-remote control battery operated "Silver Piston Action Robot". During operation, Robot walks, one wire ear loops and inside the clear-plastic Robby dome, small lighted pistons churn up and down furiously. This battery operated robot has 3 pistons in his helmet that slide up and down when started. His antenna spins and he walks forward. He also features adjustable arms. Requires 2 Size "C" Batteries (not included). Robot measures 8.25" tall.