Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

The country we are talking about is Japan, a technologically advanced nation famed for its booming economy and high living ...

Most often (though this can vary by manufacturer), the red button switches between uppercase and lowercase letters, the green button deletes the last letter, the yellow button changes the input ...

While “go” signals in Japan are generally green or a shade of blue-green, ... so it is possible to find variations of the standard red, yellow and green traffic lights.