Bluetooth

Bluetooth is a wireless technology standard for exchanging data over short distances. Bluetooth only works in the devices have this facility. All what the user has to do is turn on his Bluetooth in his smartphone or laptop or any other device which supports Bluetooth and ask the other person to whom he has to send the selected files to turn his Bluetooth on too. in this way the files can easily be transferred without difficulty. Bluetooth operates at frequencies between 2402 and 2480 MHz, or 2400 and 2483.5 MHz
       Bluetooth exists in many products, such as telephones, tablets, media players, robotics systems, handheld, laptops and console gaming equipment, and some high definition headsets, modems and watches.
      
The Bluetooth Core Specification Working Group (CSWG) produces mainly 4 kinds of specifications

• The Bluetooth Core Specification, release cycle is typically a few years in between
• Core Specification Addendum (CSA), release cycle can be as tight as a few times per year
• Core Specification Supplements (CSS), can be released very quickly
• Errata