If you are a person who likes many things kind of riddle, then you’ll like “Da Vinci Code” phone concept as you can see in image.

This phone concept with stick shape has designed by Marc Schomann. Actually this concept has not named yet, but because the designer is a big fan of Da Vinci Code, then the name “Da Vinci Code” sounds perfect.

To use it, you have to spin the body so the numbers you want to dial appear in one line. Wait, hold on, that has not enough. You still have to spin the top till the led turn green. After you send your “secret code”, then you can hang up the phone with spin back the top until the led turn red.

This Da Vinci Code phone concept works without any button or even display, and it use an old-skool spinning principal phone.