Microphone
The model: WM-308
The packing: the product packing: ( skin ) 234*136*74MM
The outer chest packing: ( paper ) 530*330*240MM ( 20pcs )
The technology parameter:
The power supply: launcher DC's 1.5V's bin DC's 1.5V's
Frequency echoing: 100~10KHz.'s
Output impedance: 600ohm
Sensitivity: 52dB
The operation scope: 150m
The degree of distortion: 1%
The directive property: it is one-way
The use pattern: so wired / that does not have the thread dual purpose

The WM-308 is wired / does not have the thread dual purpose microphone to be that the one money use is convenient and cheap but good and the steady top grade microphone of function. We should use in stage performance and campus broadcasting and meeting speech.