Microphone Controller of MA-2000:
Clear and real voice, little noise interference, convenient to set up and maintain.
Hawling could be automatically controlled.
Three wiring terminals for system connection, each could be connnected by Max of 20 microphone units. Central controller could be extended and total 120MIC units could be connected.
Three mode for speech: Free, Limit and FIFO.
A. When set in free discussion, it allows any MIC unit to be turned on at one time.
B. When set in FIFO, the speech MIC number can be set as 1/3/6, when the maximum number is occupied, the later MIC could be turned on for speech by closing all the working microphone.
C. When set in Limit, the speech MIC numbers are limited at one time and the number could be set as 1/3/6 units.
System volume controller and LED instruction.
Hand-held microphone interface and independent level control.
Conference recording interface and multi-audio input/output.
Long-range telephone conference is available.

Chair/delegate microphone of HS-3300C/D
Unidirectional electret condenser microphone.
Unit has double colors indicated light for speach/off-speech.
The unit is equipped without power, power equipped by central controller of DC24V, according to the safe range.
Dual microphone input design with earphone jack, collar microphone could be easily used at the same time.
Inside speakers with auto mute.
MIC uit with earphone jack and volume controller.
2.1M 8P cable(male) is provided.
Except the above items, chairman unit has speech priority and could stop delegate MIC speech and control the conference order.
The numbers of chairman units is unlimited and location isn't restricted.