CLEARSOUND CSW 540 ชุดไมค์ประชุมไร้สาย 4 ไมค์

4 Channels Adjustable frequency.
IR automatic 20 frequency points.
Microphone can be used in every channel.
2 controllers can used simultaneously.
LCD screens show working status on the receiver and emitter.
There are 2 balanced output and 1 mixed unbalanced output, 2 rubber antennas.
AA 1.5V*3 battery power supply, support 8 hours.
Light ring on the microphone head will display working status.
Working distance: 50 meters.
Its suitable for various kinds of conference and performance occasion