According to google translate …
Hi12 dual system with active passive pressure-sensitive capacitive touch pen, the number of low precision 0.2MM, speed of response in less than 25 milliseconds. Pen down clear and smooth precision, writing to fill the gap. Also supports 512 levels of pressure sensitivity fine, rough handwriting with the intensity of the size may be small, the whole point of the stroke of the flexible use to achieve your heart wonderful ideas.