Wireless media carry electromagnetic signals that represent the binary digits of data communications using radio or microwave frequencies.

As a networking medium, wireless is not restricted to conductors or pathways, as are copper and fiber media. Wireless media provides the greatest mobility options of all media. As well, the number of wireless enabled devices is continuously increasing. For these reasons, wireless has become the medium of choice for home networks. As network bandwidth options increase, wireless is quickly gaining in popularity in enterprise networks.

The figure highlights various wireless related symbols.

However, wireless does have some areas of concern including:

Although wireless is increasing in popularity for desktop connectivity, copper and fiber are the most popular physical layer media for network deployments.