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for classroom infrared wireless dual-band speaker system(KS868-AB)
for classroom infrared wireless dual-band speaker system(KS868-AB)

Minimum Order: 0
Quality/Safety Certification: 0.00

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

for classroom infrared wireless dual-band speaker system(KS868-AB)


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, it there are barrier and turn of the teachers ,the transmitting distance can be 10m.


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



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

        A standard layout external connection receiver, the receiving area amounts to 200 square meters, regarding the lecture hall, may the external connection two receivers, the receiving area be possible to amount to 400 square meters.Fitted in a 80~200 pepole’s room.  

       standard power amplifier disposition peak power output 200W, external connection 4 passive sound boxes;

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







Frequency Range


Reception Angle

360 degree

Power Requirements

220VAC  50Hz

Reception sensitivity


Signal-to-noise ratio


IR Receive Frequency

2MHz (encrypted)

Infrared Wavelength


Wire 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)


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