This Project Kit Perfect for Beginners or Anyone Interested in Electroincs. All you need is a Soldering Iron and Solder and off you go.
Four high-intensity LEDs light up and react simultaneously on every sound. For different funny and practical applications, such as : sound indicator, simple sound-to-light unit for music, for the hearing impaired : can be used to indicate the telephone, door bell. Adjustable sensitivity with potentiometer. Built-in microphone.