BRIO Railway Two-Way Battery Powered Engine. Power down the track with this classically designed, battery powered yellow and red engine. A simple flip of the switch on top of the engine changes direction from forward to reverse. This powerful little engine can pull the big loads and even has a light-up headlamp to show the way. It is designed to work with all Brio wooden railway sets. Batteries Not Included. These items are compatible with the BRIO Railway System. Part of the BRIO WOODEN Railway system.