Asus stylus pen is perfectly calibrated to detect possible shades or variations when you are drawing or writting.
It is detecting a thousand variations per minute, whatever it is on 10 grams or 300 grams paper and having a 0.2mm linearity.
Answering time is instantaneous to avoid waiting and productivity loss, it doesn't matter how fast you are writting.
Up to 10 months charging time.
Guarantee: 3 months