Mst-3620 U segment tow two conference wireless conference gooseneck microphone

Mst-3640 U segment tow four conference wireless conference gooseneck microphone

Mst-3680 U segment tow eight conference wireless conference gooseneck microphone

MST-5200 solid U segment one drag two meeting

MST-5400 solid U segment one drag four meeting

MST-5800 solid U segment Yituoba meeting

Mst-2000 U segment tow two conference wireless conference gooseneck microphone

MST-4000 one for four meetings

MST-8000 U Section Yituoba Meeting