Model: The "Emma" locomotive has an mfx digital decoder and two sound functions that vary with the speed. It also has dual headlights that will work in conventional operation and that can be controlled digitally. Warm white LEDs are used for the lighting. The locomotive frame and body are made of plastic. 1 axle powered. Traction tires. The locomotive has coupler hooks.The "Emma" locomotive has a removable roof so that the toy figures Jim and Lukas can ride along in the locomotive cab. The "Emma" locomotive comes in an enlarged version (not 1? scale) for running on H0 C Track. Jim, Lukas, and the small locomotive "Molly" are included as toy figures and provide great play value. A cutout sheet for Molly's little basket is included so that Emma can take her little Molly "piggyback" on the trip. Dimensions for the Emma locomotive are length over the buffers 100 mm / 3-15/16", width 60 mm / 2-3/8", and height 105 mm / 4-1/8". Toy figure Jim: height approximately 36 mm / 1-7/16". Toy figure Lukas: height approximately 45 mm / 1-3/4". Molly locomotive: height approximately 42 mm / 1-5/8".Contents: 12 no. 24130 curved track, 2 no. 24172 straight track, 1 no. 24188 straight track, 1 base station, 1 switched mode power pack, and a wireless, easy-to-use infrared controller, the Märklin Power Control Stick, are included. 2 each AAA batteries are included with this set. The set can be expanded with the C Track extension sets and the entire C Track program.