Drawing styluses are, for the most part, simply glorified sticks. They do what your finger would do, but have a finer point. The new jaja stylus developed by Australia’s Jon Atherton, however, has a few tricks up its sleeve – the big one is, it is capable of registering 1,024 levels of user-applied pressure, which it transmits to the tablet or smartphone’s microphone using sound. The resulting lines drawn on the screen will be of varying thicknesses, depending on the amount of pressure applied.
Read the full article: The jaja stylus uses sound to transmit pressure