Perfect for a trip around the tree and great fun for beginners, the Atlas HO Scale Trainkids Passenger Train Set and accessories make getting started fast and fun. Battery-powered sets feature a sleek streamlined passenger train and an 38 x 56\” oval of easy-to-assemble plastic track. Each train set includes powered and unpowered locos and three cars and can be expanded with more cars and track (sold separately). The set features a remote control speed and sound controller and the power car and controller each require AAA batteries (not included). Additionally, the train can be operated on regular HO Scale track using the remote, but will not be controllable using conventional DC or DCC systems.