Thunder Chief Digital Starter Set – Digital Command Control with Sound – HO Scale. With the roar of its mighty motor and a blast of its horn, the Thunder Chief announces its arrival. Commanding the attention of one and all, there is no missing the excitement of the Thunder Chief storming into the station. Featuring a DCC sound-equipped F7-A with a diesel sound package that includes prototypical prime mover, three air horns, and bell–all in polyphonic 16-bit sound that you can control with our E-Z Command® digital control system. Rolling stock in this ready-to-run set includes a 40 foot box car, three dome tank car and caboose along with an E-Z Command® control center, and 56”x38” oval of nickel silver track.