Piezo(壓電)麥克風

又稱 crystal microphone (晶體麥克風) 或稱為 Contact Microphone
http://en.wikipedia.org/wiki/Microphone#Piezoelectric_microphone
http://en.wikipedia.org/wiki/Contact_microphone

購買：
http://www.amazon.com/Contact-Microphone-Pickup-Guitar-Kalimba/dp/B0044KI7DO
http://contactmicrophones.com/
http://hydrophones.blogspot.com/
http://contactmics.com/

http://www.cranksturgeon.com/PIEZOCRANK.html

自製介紹：
http://brokenpants.com/?page_id=94
http://home.earthlink.net/~erinys/contactmic.html