Wireless communications are any transmissions in which data is not sent by either optical or electrical wires or cables. These can include radio and satellite broadcasts, but the term is typically used to mean one of a broad set of standard methods and protocols for localised networking. Common standards for personal area networks include Bluetooth (used in short range communication with low powered devices such as handsfree headsets, keyboards, mouses, printers and speakers), ZigBee (used in low powered applications such as in smart homes and wireless sensor networks) and wireless USB. WiFi is the most common
standard for local area networks, while wide area networks can use a range of methods including WiMAX (microwave transmissions with a range of around 30 miles) and GSM/GPRS (used for mobile communications). Source your wireless communications solutions here, including wireless networking systems, Bluetooth and WiFi products.