A connector unit includes a male connector including a first plug terminal, a second plug terminal, a first switch terminal, and a second switch terminal; and a female connector including a first jack terminal, a second jack terminal, a first contact unit, and a second contact unit. The first jack terminal is connected to the first contact unit. The second jack terminal is connected to the second contact unit. The first switch terminal is configured to make the first contact unit electrically conductive and the second switch terminal is configured to make the second contact unit electrically conductive when the male connector is inserted into the female connector and rotated with respect to the female connector.