An Electret Condenser Microphone is one of the most common types of transducers that is used to detect or measure sound signals. It consists of a parallel plate capacitor in which one plate is fixed and the other is movable (diaphragm) with a very small gap between them. When a sound wave strikes the diaphragm, it starts moving which changes the capacitance of the capacitor and causes a variable current to flow. This variable current is then filtered and processed to get the sound you want to record. It is used in noise detectors, sound recorders, activity monitors mobiles, Digital Cameras, etc.
 
FEATURES:  
It is a converted voice signal to electrical signals energy conversion device
Widely used in the cassette recorder, wireless microphone, and voice control circuits
With high resistance to vibration, high signal to noise ratio
Low noise
Low power consumption
Suitable for a wide variety of Electronic products 
 
SPECIFICATIONS:
Size: 5 x 6mm (Diameter*Length)
Type: Through Hole
Operating Voltage: 3.3V to 5V
Current consumption: 0.5mA (max)
Operating Frequency: 20Hz to 16,000Hz
Microphone sensitivity: 58DB