Velleman Steam Engine Sound Generator with Whistle # MK 134 (requires soldering assembly)

Generates sound of a vintage steam engine. Adjustable 'speed' and volume. Great for model railroads, train sets, radio plays, stage, as gadget. With 'steam whistle'-push button.

Specifications:

* Power supply: 9V battery (not incl.)

* Comes with 8 ohm/0.5W miniature speaker

* Dimensions: 3.9" x 3.3"