The Nexus Q is a media streaming device introduced by Google in 2012 that is spherical in shape and runs the Android 4.0 operating system. It allows users to stream music, videos and play YouTube from their mobile devices via a local WiFi network. The Nexus Q app controls the device and its lighting effects change based on the content being played. However, the device received some criticism for its high price of $299 and limited functionality compared to other streaming devices.