CP Toys 3 Car Musical Train with 2 Different Tunes, Whistle Sounds, and Interchangeable Engineers for Infants and Toddlers Plays 2 different tunes and moves at 2 different speeds depending on which engineer is used. Whistle sounds. Track is 23" l. X 17 1/2" w. When assembled. The train can also be used without the track for freewheeling play. Requires 3 "aaa" batteries (not incl. ). Ages 12 mos. +.