Which Device Works In Half Duplex Mode?

Which Device Works In Half Duplex Mode? In a half-duplex or semiduplex system, both parties can communicate with each other, but not simultaneously; the communication is one direction at a time. An example of a half-duplex device is a walkie-talkie, a two-way radio that has a push-to-talk button. What uses half-duplex transmission? The half-duplex mode