The noise sensor monitors the noise level in your room and can be programmed to output the noise level in decibels. Try singing loudly or snap your fingers to test the intensity of the sound.
Specifications
Connection: RJ11
Type of Connection: Analog output
Working Voltage: 3.3V
Size: 55.8 x 23.8 mm
You can find the introduction of this product following this link
https://wiki.elecfreaks.com/en/microbit/sensor/planet-x-sensors/Plant_X_EF05003
