The D-Cerno C is a chairman discussion unit that comes in a stylish design that is minimized in height, without compromising sound quality. With the touch sensor button technology, it is probably the most hygienic conference unit on the market. The touch button is perfectly flush and there are no gaps around the button were dirt and germs can collect. It is therefore very easy to clean and disinfect. The chairman unit comes with a prior and next-in-line button. The shielded microphone is immune to interference from mobile phones, guaranteeing perfect sound at all times. The integrated headphones connection comes with a conveniently placed volume control, again using touch sensor button technology. The digital bus connections are concealed under the unit, to not interfere with the stylish design of the unit. While connected, there is no need to worry about what is in or out as the unit itself detects the direction of the signal flow automatically.