DFRobot Sound Sensor Sound Sensor DFR SOUND SENSOR ARDUINO COMP DFR0034 ARDUUINO COMPATIBLE ELECTRET MIC SOUND SENSOR-REPLACED BY SME SOUND SENSOR ARDUINO Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview This small breakout board couples a small electret microphone with a 100x opamp to amplify the sounds of voice, door knocks, etc loud enough to be picked up by a microcontrollers Analog to Digital converter. Unit comes fully assembled as shown Features Interface Type: AnalogDetects the sound intensityPower supply: 5V DC