Trackside Digital Sound Device -- "A Hooga" Horn

This complete sound system includes a train-actuated trigger switch, a 2" speaker for mounting under the layout or in a structure, and a speaker amplification box. Speaker may be replaced with a 1" speaker for on-board use in HO equipment (speaker sold separately). System operates on 9V. Add the sound of an old-fashioned car horn to your rail cars. Complete system includes a reed switch triggered by a magnet on the roadbed.