This is only the time console - normally sold with the Limitimer PRO-2000BT System.
The DSan Limitimer is an automated timekeeper that controls a remote signal light alerting speakers to the end of allotted time Limitimer...Keeps time at lectures, forums and legal proceedings. Maintains pace of programs. Builds confidence that no one's time is unfairly curtailed. Spares moderators the need to interrupt and helps speakers end smoothly.