ClickShare captures both video and audio. Currently not. Audio will be available in march 2013 through a free of charge software update. Audio will be available from a separate audio output from the base unit. The audio signal is not included in the DisplayPort or DVI-I signal.
Audio is supported from version 18.104.22.168 onwards. The audio and video signal are lip synchronized on CSC and wirelessly transmitted via the ClickShare Button. Audio output is available via analog line out on mini jack socket (3.5mm).
Audio embedded in the DisplayPort/HDMI signal of the CSC Base Unit will be available from version 1.5 onwards. This software is scheduled to be released in Q2 2014.