Check the listing for details. Velleman K4401 Sound Effects Generator Kit. Condition: New. Listed at 18.95 USD. Sound Generator KitThe ideal device for DJ's, jingles for radio stations or just attract attention. With one output for direct connection to a speaker and one line output for connecting to a mixer panel or amplifier, the following effects may be generated directly by means of a push button: Machine gun, European siren, Phase gun, Racing car with motor howl, Screeching of car tires on a curve, Explosion, Mortar fire followed by explosion, or US siren. It can also play Musical tunes: "Wild charge tune" or "Snake charmers tune" Specifications:Supply voltage: 8 - 10V DC / 100mA or 9V battery (not incl.) Line output: 1Vrms Speaker output: 1 Watt PCB dimensions: 3 x 3"Level 1 kit (beginner) - requires assembly (soldering) Check out more fun and exciting electronic kits Detailed specifications Design Level: Beginner Kit