Detailed Product Description Conference Microphone:1. Power consumption of main unit 400W, ... many conference work mode: Free, FIFO (1-9 microphone unit), Limit (1-9 microphone unit).4. Main unit has following ... mode: Free mode, FIFO mode (1-9 microphone unit), Limit mode (1-9 microphone unit)7. With the port ... 50/60Hz Installation:19-inch frame9. Connection a. 1 pcs 13m main cable with 8PIN plugs; b. ...