Morse Code Alphabet 3 Inch Round Button

International Morse Code, created in 1838 by Samuel Morse and Alfred Vail, a way to represent the alphabet, numbers and special characters by means of sounds, flashes of light, electrical impulses or the characters popularly known as the dash and dot. Morse code is still used today by ham radio operators, pilots and flight controllers are familiar with it, and it can be useful at sea and in various emergency situations. The SOS signal (three dots, three dashes, three dots) is the international signal in Morse code for a call for help. The SOS signal can be done by blinking fast three times, blinking slowly three times, and then blinking fast three times once more. Remember SOS forever!