1. Transform sound into electric signal-
The best design in theory:
The design of electret condenser microphones is based on the theorem
that we use charging and discharging motion
between electric capacity conductors. When the ultra-thin or gold-plating
Mylar diaphragm response to the sound
pressure level, it changes the static electricity between the conductors
into electric signal directly. Then we can gain
a proper output of impedance and sensitivity by the electric circuit
coupling.
2. The characteristic of reappearing the original sound:
To reappear the original sound is the highest performance for
the acoustic specialist to achieve. If we check the basic
design of the microphone, we can find a electret condenser microphone
can transform the sound into electric signal
directly, because it is not only manufactured with accurate mechanism
technique, but also combine complicated electric
circuit. Therefore, with the excellent characteristic in advance,
the electret condenser microphone must be your best choice.
3. Very wild frequency response:
Diaphragm is a main component of a microphone to sense the sound
and to transform it into the electric signal.
The material and the mechanical design of the diaphragm decide
the acoustics of a microphone. Due to the material
of the diaphragm is very thin and light, and can transform the
sound into electric signal directly; the range of the
frequency response can reach to the ultra-low frequency (under
10 Hz), and the high frequency can also gets to
supersonic easily, which shows the characteristic of wild frequency
response.

The diaphragm of the dynamic microphone loads a sound coil which
is hundreds times heavier than itself. (Left picture)
The diaphragm of the electret condenser microphone works without
any load. (Right picture)
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