electret condenser microphone

1.Parameter of electret condenser microphone:
Impedance                                       max 2.2KΩ

Directivity                                     Omnidirectional
Frequency                                       20-16,000Hz
Standard operation voltage                 2V
Current consumption                          Max 0.5mA
Sensitivity reduction                Within 1.5V,Sensitivity 3dB at 1.5V
S/N ratio                                         min 60dB
Sensitivity                                   -44±2dB(0dB=1V/pA,1kHz)
When you place an order ,please tell us the above parameter .
2.Sample :
We can provide  free samples (10pcs)  to  you .But the  freight shall be borne by your company.
3.Sample time :
The parameter is ok ,we will arrange the sample for you ,the time is about 1-3 working days .
4.Delivery time :

5.Terms of payment:

     TT,Western Union.

6.Company product