The model train has two engines, directional lightening and a sound generator, which generates a diesel rumble and additionally produces horn blasts at random intervals. It is a relative strong engine and it can pull a longer string of railroad cars. I received the engine with Merkur couplers, which I swapped for Bing style hook couplers. This is quiet easy, especially in case the skirts are loosened (but do not completely unscrew them, since you will need much more time to screw them back on again) and tilted to enlarge the room for unscrewing the retaining nylon metal nut.
web-videos show the original engine and one striking feature is different, to resemble the original even better, a smoke generator needs to be installed, which is able to belch out tar black smoke during operation. Furthermore, the original Hector in the blue-white livery has a red star on the front, as a scar from the past. Personally I am a bit allergic to red stars, so I am quiet pleased with star-less Hector in red and grey.