Bluetooth 4.0 is the latest version of Bluetooth technology with the advantages of energy-efficient major officially adopted by the Bluetooth Special Interest Group (SIG) in 2010. This new wireless technology can be used in a variety of devices with low energy consumption, in contrast to previous Bluetooth specifications. Application of Bluetooth 4.0 devices will allow improvements which include minimum levels of energy use, the average power consumption idle mode (static), and the ability to function for years on standard coin-cell batteries. Energy-saving devices in question include such watches, pedometers, measuring devices, or technological devices (gadgets) others use coin-sized batteries.

 In addition, the use of bluetooth 4.0 cost a relatively affordable, can be operated multi-vendor, and has a wider range. Bluetooth 4.0 has a specification for energy efficient consumer can transfer data in a short distance. This technology is an improved capability Bluetooth 3.0, Bluetooth predecessor generation,
launched in April 2009. Currently, Bluetooth 4.0 is considered as the most suitable technology for use as a medium of communication network transfers close competitors despite having a wireless technology company that is no less great as WiBro, UWB (ultra wide band), and WiFi.


As the youngest generation of Bluetooth technology, Bluetooth 4.0 has several advantages that include:
a. Less power consumption thus saving battery power or electricity.
b. Use of a longer time to years using only a small capacity battery (coin cell batteries).
c. Low production costs.
d. Over long distances. Capable of reaching more than 100 meters.
e. Better transfer speeds of about 1 Mbps capability.
f. Security systems are more controlled than the security system on bluetooth previous generations.
Bluetooth 4.0 technology increases in the Bluetooth specification that allows two types of implementation, namely single mode (single-mode) and dual mode (dual-mode). In a dual-mode implementation, Bluetooth functionality is integrated into the energy-saving control system Bluetooth existing classic, the Bluetooth V2.1 + EDR or Bluetooth V3.0 + HS, whereas single mode chips rely on a high degree of integration. This allows the planting of containerized bluetooth devices (compact) to enable the transfer of data from one device to many devices (point-to-multipoint) with advanced power saving and security of data transfer is assured despite the minimum cost.

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