that answers my question. As I said I'm new to some of this and wasn't sure how Bachmann got the chug working and if it required additional equip. Thanks again

I currently have an outdoor set up. Would like to add sound and am considering Bachmann Steam Loco Analog. Does this require any other equipment besides the engine and tender, ie track magnets or special transformer? Or does the sound simply play when the power via track is on? This is probably simple but I'm new to it. Thanks