Bluetooth is a wireless (radio link) communications and networking technology designed to eliminate cables between computers and cell phones, printers, scanners, digital cameras and other such peripherals. Bluetooth technology supports both voice and data. In the words of the official Bluetooth web site, this technology enables "users to connect a wide range of computing and telecommunications devices easily and simply, without the need to buy, carry, or connect cables". Because Bluetooth wireless technology can be used for a variety of purposes, it should eventually replace multiple cable connections with a single radio link. In summary, as noted at the Ericsson Bluetooth site "Bluetooth wireless technology is a low-cost, low-power, short-range radio link for mobile devices and for WAN/LAN access points". It offers "fast and reliable digital transmissions of both voice and data over the globally available 2.4 GHz ISM (Industrial, Scientific and Medical) band." From the idea of simply replacing cables, Bluetooth technology soon evolved to become more diversified, to become "a universal bridge to existing data networks, a peripheral interface, and a mechanism to form small private ad hoc groupings of connected devices away from fixed network infrastructures."