With a touch of your finger on the button, you will hear the authentic sound
of a Steam Locomotive passing by blowing it's horn at every crossing.
If desired, the button is recordable for your own selected train sound.
Allowable recording time is 30 seconds. 2 AAA batteries required,
not included.
The blue button measures: Diameter, 3.5 inches. Height, 1.5 inches.
This sound button is a MUST addition to any HO layout and stock equipment
that are not DCC. Ask to see video w/sound sample.