Glensound GS-FW028 12 Circuit Desktop Four Wire Base StationA large four wire base station for 12 circuits. Each circuit has its own talk button, return level control, and incoming audio present LED so that you can identify the incoming audio source. There is also a programme input with level control for the GS FW028 speaker or headphones. There is a gooseneck microphone with an adjustable level loudspeaker. A 3 pin XLR & 6. 35mm jack is on the front panel for connecting a headset. Connections are on rear