The U.S. Coast Guard still requires merchant marine officers who will serve on larger ships to demonstrate their ability to receive flashing light signals.This is a unique program that can help you to learn sending and receiving morse code by flashing light. Ideal for sailors, pilots and others. You can also use the computer screen / projector, and the program to transmitt morse codeby it self.You can also use the CapsLock LED to flash a message.Network communication is also supported.