The main parameters

Can change way  electret

Directivity  single point

Frequency response range: 52-15000 hz

43 db sensitivity  -

Output impedance  600 Ω

The power supply voltage  1.5 V * 2

Reference pickup distance  20-80 cm

Method of use

1. According to the battery holder logo, packed the battery  plug in the audio signal cable  and the MIC jack plug in stereo equipment

(2) will be borne power amplifier MIC volume knob and placed in a "0" position  then start the power switch audio equipment and conference microphone  the microphone switch  then the microphone can send words into the microphone to teach words while debugging sound volume  until the best results will be final

3. The use of positive pointing horn and do not use cartridge from the horn too close  lest produce noise

4. Please check the battery for a period of time did not use the meeting microphone  please down the battery prevent battery time is too long acidification battery fluid corrosion parts