In radio/rf communication, a transceiver is a device that can both transmit and receive signals through a transmission medium. It is a combination of a transmitter and a receiver, hence the name transceiver.
RF Transmission is usually accomplished via radio waves, but communications satellites, wired connections, and fiber optic systems can also be used.
Radio frequency (RF) transceivers are widely used in wireless devices. For example, cell phones use them to connect to cellular networks. Other common examples include walkie-talkies and CB radios. By combining a receiver and transmitter in one consolidated device, a transceiver allows for greater flexibility than what either of these could provide individually and enhance applications for user needs.