Have more fun with more trains with the LGB Multi-Train System! This set includes an advanced MTS Central Unit III (LGB 55006) with the following features: Up to 23 loco addresses can be assigned (10,239 addresses when used with the Massoth DiMAX Navigator) / Connections for MTS Power Boosters (LGB 55090), which allows powering areas of track with separate power supplies, each area with up to 5 amps of track current. The set also includes: A handheld locomotive controller (LGB 55016) / connecting wires / instructions (transformer not included).