RC Trains
From Brickipedia, the LEGO Wiki
RC Trains is type of Trains based on RC technology. It ran from 2006 to 2009, surpassing the former 9V Trains, and was featured in the City theme. It was the shortest running Trains sub-theme as all the others lasted at least 16 years. This subtheme was surpassed in 2010 by the new Power Functions Trains, which use this new technology. Power Functions trains use the same track used for RC trains.