A short-range (10 m-100 m) wireless connectivity standard used to connect a wide variety of devices like music players, mobile phones, digital cameras, and laptops over a secure network. It consumes low power and transfers data at rates of 1-3 Megabits per second. The latest Bluetooth version is v2.1, while the faster v3.0 is in the works. Bluetooth works without user intervention—a Bluetooth-enabled device continuously sends out very low powered signals, and upon receiving a response from another compatible device, starts an auto identification process, which culminates in the transfer of data. Bluetooth is suitable for personal area networks (within a radius of about 10 metres) for controlling several devices seamlessly.