Blue-tooth is produced by Fortuna, the company is an ISO 9001-2000 certified organization. The product has become a very popular wireless port for communication in short range. It is very effective in small office environment. The Attendance Terminals can be made Blue-Tooth compliant using COMCON Blue Tooth. This will act as slave device and once deployed can be used to communicate with computer having Blue tooth master port or Dongle, using Compro 2000 Software.