BLUETOOTH


 * Bluetooth** is an [|open] [|wireless] technology standard for exchanging data over short distances (using short wavelength radio transmissions) from fixed and mobile devices, creating [|personal area networks] (PANs) with high levels of security.

bandwith for bluetooth: 1 bit at a time 2.4 ghz

**Range**  Range is application specific and although a minimum range is mandated by the Core Specification, there is not a limit and manufacturers can tune their implementation to support the use case they are enabling. Range may vary depending on class of radio used in an implementation:
 * Class 3 radios – have a range of up to 1 meter or 3 feet
 * Class 2 radios – most commonly found in mobile devices – have a range of 10 meters or 33 feet
 * Class 1 radios – used primarily in industrial use cases – have a range of 100 meters or 300 feet