WIWU Pencil Pro stylus pencil comes with a tilt sensitivity function. Tilt sensitivity supports drawing different lines and shadows by tilting to different angles. It is powered by palm rejection technology that provides a natural and accurate writing feeling, no need to wear gloves. To connect this pen to your device, no Bluetooth or App is required, just turn it on/off by clicking the cap button 1 time with your finger, it will pair automatically. A 1.2 mm POM tip same as the official iPad pencil has been used. It is made of Carton Fiber. It has higher sensitivity, more accurate signal comparing to other ordinary stylus pens. No lag/offset/breaking point, no scratch on the iPad screen. Just enjoy the smooth experience. The screw-type design tip is very easy to replace. 1.5-2H charging time supports up to 20H of continuous use.