Note: Manual measurement, with small error. Please check size in detail before purchase. Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness. We highly appreciate all customers opinions to improve the selling, also if anything you unsatisfied, please contact us for probable best solution. Package Includes: 3Pcs

There is a power indicator and the comparator output has an indicator. High sensitivity microphone with high sensitivity. There is an analog output with a threshold flip level output. There are 3mm mounting screw holes, which are powered by a 5v DC power supply. The module has 2 outputs: AO, analog output, real-time output microphone voltage signal; DO, when the sound intensity reaches a certain threshold, it outputs high and low level signals, [threshold-sensitivity can be adjusted by potentiometer].