Velleman MK103 Sound-To-Light Unit Kit

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. Specifications Country of Origin: Hong Kong Consumption: 0.5Ma Min. / 12Ma Max. Power Supply: 9V Battery (Not Incl.) Dimension: 1.6 x 2.2 x 1.4" - SKU: VLLMN2885