Microphones
Crystals which demonstrate the piezoelectric effect produce voltages when they are deformed. The crystal microphone uses a thin strip of piezoelectric material attached to a ...

Microphone - Wikipedia, the free encyclopedia
The high impedance of the crystal microphone made it very susceptible to handling noise, both from the microphone itself and from the connecting cable.

crystal microphone (electroacoustic device ...
Britannica online encyclopedia article on crystal microphone (electroacoustic device),

Personalized microphone awards in crystal and resin ...
Crystal microphone awards including Personalized announcer and MC gifts, custom master of ceremonies award from Crystal Images Inc.

Swarovski Crystal Microphone
Covered in over 1500 tiny Swarovski crystals - each set individually by hand! This microphone is a Seinhesser 600/800 e838 It has a frequency response which maintains signal ...