SE528C/SE528D series are the professional conference microphones which research 
and development by SINGDEN. Its unique voice frequency circuit, have ability to deal with
 high sound pressure, full-balanced design and unique masking techniques can anti-cell
 phone and other RF interference in long distance transmitting. 80*30mm LED display
 placed on microphone panel can display various state and information of microphone timely.
 Excellent sound performance, high reliability, advanced digital technology fully combining with 
audio technology, suitable for all kinds of conferences. Support to voting function, the 
microphone can be voted in multiform by 3-5 keys when use with PC software, such as
 subject vote, democratic appraisal, election, etc.
Use this series of microphone, can achieve to conference register, speaking, voting 
and automatic video tracking function; discussion unit with built-in loudspeaker, headphone
 jack and volume control knob, participants can listen in conference speaking from built-in
 loudspeaker or headphone, and adjust the voice volume by control knob. Any 1-6
 microphones out of Chairman and VIP can speak at the same time, multiple VIP 
units can be set by software; black and silver color for choose.