This high sensitivity sound detection module detects sounds between 48 and 66 dB and has an analog as well as a digital output.
The AO or analog output creates a realtime output voltage signal of the microphone whereas the DO or digital output depends on the sound intensity and the threshold that has been set.

voltage: 3.3 to 5 VDC
outputs: one analogue + one digital output
fixation: 1 mounting screw hole 3 mm
2 indicator LEDs: 1 power indicator + 1 comparator output indicator
frequency response: 50 Hz 20 KHz
impedance: 2.2 K Ohm
sensitivity: 48 66 dB
operating temperature: 40 to +85C
dimensions: 44 x 15 x 10 mm
weight: 4 g