The CS3 DU microphone station is the basic delegate unit for the CS5 conference systems. It provides both an integrated loudspeaker as well as two 3.5 mm stereo headphone outputs and could be used for up to 2 delegates. Depending on the selected operating mode, the PTT key enables the speaker to directly switch on their microphone or to enter the system waiting list. The CS3 DU comes with a robust interface connector, which makes it easy to interchange the stations microphone. The detachable microphone comes in two choices - the CS321 cardioid condenser capsule on a 30 cm long gooseneck and the 50 cm long CS521. The CS3 DU set-box contains a 2 m long Plug and Play connector cable as well as the preferred microphone choice.