Using the button, make a phrase by pressing the button for a dot and and holding it for a dash, making a letter. If you wait more than half a second it will start a new letter. Translation will tell you what you made. Press Clear all to clear all. It's sort of hard to use. Here's a key to Morse Code: Apostrophe · – – – – · A · – B – · · · C – · – · D – · · E · F · · – · G – – · H · · · · I · · J · – – – K – · – L · – · · M – – N – · O – – – P · – – · Q – – · – R · – · S · · · T – U · · – V · · · – W · – – X – · · – Y – · – – Z – – · ·