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.

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Consumption: 0.5mA min. / 12mA max. Power supply: 9V battery (not included) Dimensions: 1.6" x 2.2" x 1.4"