The Lionel 2123130 Polar Express Passenger Train Set is a complete train set featuring 24 items, including a Hobo Car with Bluetooth 5.0 technology. This O 027 gauge set is ready to run and is suitable for families aged 14 to adult. The set includes features such as a puffing smoke unit, light function, and sound function, and is powered by AC and DC. With a vintage-inspired theme based on The Polar Express franchise, this diecast train set is a perfect addition to any model railroad enthusiast's collection.