Unleash your potential and record the every moment of your creative idea!ASUS PEN SA300 is an USI method active stylus pen with an elegant and intuition design appearance. Aluminum material used in the shaft of a pen giving the comfort while using. Up to 4096-levels pen pressure sensitivity and 10-400g tip force durability give you an entirely natural and precise handwriting experience just like writing on paper! Moreover, the ASUS PEN SA300 using two-way communication, offers more consistent performance in areas with a lot of radio interference, also allows multiple styluses (Max 6 pcs) can draw on one display at a time. ASUS PEN SA300 using one AAAA battery so that it doesn’t require a Bluetooth connection to user’s device. Changeable pen tip can easily be replaced by user and extend stylus pen life.