Deﬁnition: Infrared is a form of wireless connection in which signals are sent via pulses of infra- red light. Infrared is generally used for short-range transmission of up to one meter, and can transfer data at speeds up to 16 Mbps. One major downside of this technology is that infrared receivers need an unobstructed view of the sender to successfully receive the signal, though the signal can reﬂect off hard surfaces to reach the recipient. Many infrared-compatible devices follow the standards from the Infrared Data Association (IrDA).
Figure: Transferring information over an infrared connection.