3.3v/3.5v Lm393 Microphone Amplifier Sound Sensor Mic Voice Module For

and high quality The LM393 is a microphone module that works with microcontrollers. It can be used for audio detection and allows you to control your system with sound e.g. -on, -off control. Keep in mind it can only detect audio, not differentiate between varying audio levels. Voltage:3.3V - 5V Size:4.50cm x 1.7cm/1.77*0.67 inch Digital Switching Outputs Adjustable Sensitivity External GND GND :1Pc material:CCL colour:BLUE packing:1 x microphone sound module for Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.