1) has hemongeous sound with two speakers.
2) can connect with computer, DVD, MP3, etc.
3) install convenient.

infrared wireless microphone system(KS168-B)

Here is the Infrared Advantages:

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

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

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.

Features:

1. Amplifier, speakers, integrated in a compact loudspeaker, receiver outfitted.

2. The host machine adopts wall-mounted installation, output power is 50W.

3. Suitable for 50 ~ 80 or classroom, receiving area is 80 to 120 sqm.

4. Just set up a wireless microphone volume knob that simplify debugging procedures; 5. this host is focused on wireless amplifier single function, there is no audio input, output, and a wired microphone access function, and no bass adjustment, suitable for classroom which just needs single speakers.

Specifications:

 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.