Bluetooth technology used for short-range wireless connection between devices such as PDAs, mobile phones, headsets, keyboards, mice, modems, laptops, projectors, printers, etc..

CDMA networks provide a wireless transmission capability of high speed data that provides customers with services of information and images from anywhere they are. CDMA technology appears as a generic technology base par excellence for the next generation 3G mobile communication having already entered the present 2G, in fact, the overall trend in the industry is the adoption of CDMA technology.

Mobile services based on CDMA standard will enable hundreds of millions of users to enjoy multimedia content, anytime, anywhere. According to a study published by the firm Datacomm Research Company, headquartered in Chesterfield, Missouri, the mobile Internet market will explode once operators begin to offer affordable multimedia resources.

The ability of a system refers to the number of users can simultaneously share the physical resources available (bandwidth) maintaining an appropriate level of quality. In the case of a communication that uses the CDMA multiple access scheme, it follows that the interference in communication comes from two sources: one internal and one external.

With CDMA, unique digital codes, rather than separate RF frequencies or channels, is used to differentiate subscribers. The codes are shared by both the mobile station (cellular phone) and the base station, and is called "pseudo - code sequences of chance." All users share the same range of radio spectrum.