Bring home the magic of the holiday season with the Lionel The Polar Express 20th Anniversary Ready-to-Play (RTP) Train Set. This high-quality, 37-piece set is easy to assemble and features modern Bluetooth control, making it perfect for under the Christmas tree or around the room! ? IMPORTANT GAUGE NOTE. This is a Ready-to-Play (RTP) set. It is battery-powered and uses a unique track system. It is NOT compatible with traditional Lionel O-Gauge or G-Gauge electric track. ? Key Features & Contents. Connectivity: Features Bluetooth® technology for full control via the Lionel LionChief App on your smartphone or tablet. Locomotive: Detailed steam engine with a working headlight. Sounds: Authentic train sounds, including whistle, bell, and movie announcements. Smoke Effect: Includes a realistic Water-Vapor Smoke Effect (Water dropper included). The smokestack also features a blinking LED light. Rolling Stock: Includes 1 Coal Tender, 1 Passenger Coach, and 1 Observation Car. Track Layout: 32 pieces of track creating a large 73.2 in. Power: Requires batteries for operation (Not Included). Piece Count: Complete 37-piece set. ? Collector’s Appeal. As the special 20th Anniversary Edition, this set is highly sought after by collectors and makes a wonderful centerpiece for any holiday display.