Enter the world of amazing electronic sounds and noises. Create or imitate sirens of all kinds by adjusting 3 trimmers. Powerful sound with a 2W amplifier on the PCB. The circuitry in this Velleman K2604 Siren kit lets you create and imitate all kinds of siren sounds by adjusting the three potentiometers. Connect it to your loudspeaker for even more powerful siren sounds.
Power supply: 8 - 14V DC / 1A (not included)
Modulation speed: 0.5 - 5s
Frequency: 300 - 6000Hz
Output power: +/- 2W max.
Connects to a 4 - 16 ohm loudspeaker (not included)