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infrared wireless teaching microphone system(ks868-B)
infrared wireless teaching microphone system(ks868-B)

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Quality/Safety Certification: 0.00

1)no string frequency.200W
2)infrared light transmitte,healthy and harmless.
3)turning distance up to 10m.

infrared wireless teaching microphone system(ks868-B)


Here is the Infrared Advantages:

1.Infrared light transmit signal,High Security,Interference Resistence and Against String Frequency

Infrared (IR) is short-range wave, cannot penetrate walls,which solve the string problems between the classrooms. It can realize that many sets of equipments used in many rooms simultaneously, so  it is safe and has good isolation.


2.Emitter can be equiped with any receiver,Operate Conveniently

We can use the same frequency in the different rooms beacause of no string frequency. teachers can use the same microphone in different rooms ,so it is conveniet to manage.


3.Using light refraction to achieve 360 ° sensing in 30 m, the turning transmitting distance can be 10m.

4.Away from the electromagnetic radiation and interference, create a healthy, environmental -protected, health, green campus.




1. International IEA standard 19-inch 2U high level aluminum alloy casing, easy to set up and manage,which can be equiped with the multi-media facilities.

2. The receiving area amounts to 200 sqm with one external receiver, the receiving area is possibly amount to 400 sqm with two receivers.

3. Fitted in a 80~200 pepole’s room.

4.Has the functions of audio output, input,high and low volume ,digital reverb.

5.Standard power output 200W, external connects 4 passive sound boxes.

6.Can be upgraded into 868-BB type which is more advanced in receiveing area.







Frequency Range


Reception Angle

360 degrees

Power Requirements

220VAC  50Hz

Reception sensitivity




IR Receive Frequency

2MHz (encrypted)

Infrared Wavelength


Wired microphone interface



Standard  Assembles

The multi-media amplifier host


KS-HG/KS-HD transmitter

1 in 2

Passive speaker


Out-fitted receiver

1set (including15m signal line)

Enhanced  Assembles

The multi-media amplifier host


KS-HG/KS-HD transmitter

1 in 2

Passive speaker


Out-fitted receiver

2sets(including 30m signal line)


there are two kinds of mirophone for your reference, handheld MIC and chest-worn MIC with collar-clamp or headphone. You can choose the one u like.


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