Features:

This microphone is with uni-directional type, 

It is using a black plate micrrophone element and low noise pet trasistor .
 
This microphone is holded with special spring clip, which can be not easy dropped and includes on-off switch for convenient operation.



Technical Specifications:

Frequency Response

100hz -16KHz

Impedance

500Ω

Power supply

1 x1.35V (Mercury Plug)

Directivity

Uni-directional

Condenser Type

Electret condenser