Before the onset of the smartphone era, Bluetooth used to be the de facto connectivity standard in transferring data from one phone to another; usually, audio, videos and picture files. Now in its latest avatar, Bluetooth Low Energy (BLE), or Bluetooth Smart, the technology is making a full-fledged return because of its ease of use in connecting devices for the Internet-of-Things It is a light weighted subset of classic Bluetooth that supports Bluetooth 4.0 Core specification. As per ABI Research forecasts, there will be a flood of new Bluetooth-enabled devices with a total shipment of 5 billion such devices, and BLE alone constituting 27% of all shipments.