Listed for sale is a lot of 200 pcs Siemens Electret Mini Microphone, Part #: C39254-Z6-C60. All mics are brand new in bulk package. 

  The lot of 200 is from a whole pack of 1000pcs; 200 pcs will be shipped in an ESD bag; buying a whole pack of 1000pcs will get its original pack shipped and with 10% discount. 

These mini microphone are great for any projects where voice and sound input involved and size is limited! 
They're often used in Cell Phones, Voice Recorders, Surveillance/Spy Systems, Clip-on Microphone Sets, toys. etc... 

Features:
Brand: Siemens
Original Use: Cell Phone Microphone
Size: 8mm x 8mm x 5mm thick
Remove the rubber boot to reduce the size to 6.5mm x 4mm thick
Omni-directional
Frequency Range: 25hz - 16KHz
Voltage: 2VDC (10VDC Max)
Connection: Solder Patches (2 prongs are also attached to press into external device)

  Reference design schematics and further information are available upon request!