This document discusses wireless communication technologies such as radio, TV, mobile phones, and Bluetooth that transmit signals through waves instead of wires. It mentions pioneers in wireless technology like Heinrich Hertz and Guglielmo Marconi. It also provides definitions of wireless technologies including GPS which uses satellites to determine location globally, and examples of Pakistani wireless services like Wateen WiMAX, PTCL EVO, and Worldcall EvDO.