Time Recorder / pen

Different People have different ways to take notes. As designers, we normally write from one place to another instead of writing them step-by-step, so it always makes us confused when reviewing the previous notes for we can't remember the right order and ideas.
But now, the Time recorder pen works this out, taking advantage of the changing colors from one color to another, you can see the notes from the beginning to the end clearly, it brings us a great fever to sort out the right order of the notes.