Yup, that's mine, that's the newest version as far as I know, not much different from the white one on your picture.
You turn it on with the yellow key (which stays permanently in the lock), select the mode with the red switch, open and close the doors with the smaller black handle and steer the train with the big one. Four buttons are for the sounds, and that black thing on the left is, I suppose, a "microphone" for kids to play, it has no function at all, but when you remove it, you have a nice grip with your left hand when you hold it in the air and operate the train with the big handle with your right hand.
All in all, it's a very cool Plarail "gadget"!
You turn it on with the yellow key (which stays permanently in the lock), select the mode with the red switch, open and close the doors with the smaller black handle and steer the train with the big one. Four buttons are for the sounds, and that black thing on the left is, I suppose, a "microphone" for kids to play, it has no function at all, but when you remove it, you have a nice grip with your left hand when you hold it in the air and operate the train with the big handle with your right hand.
All in all, it's a very cool Plarail "gadget"!
My YouTube Channel: Mister No