New Cordless Renovatons CARRIER BOARD. (Car Not Included) Comes with 18.5V Lithium-ion 5200ma Battery. Sound can be added as well as your favorite controller IE Revolution, QSI, etc. Pictures show the different options the battery car modual can accomodate. QSI Sound Decoder, Receiver & Speaker Not Included. Can be added to any 40ft rolling stock.