Greater Sensitivity: Real 4096 levels of pressure sensitivity delivers pixel-perfect precision and low latency, making it great for drawing, sketching, coloring, taking notes, marking up email, and more. Tilt and Palm Rejection: Uogic Ink 581 Stylus Pen is sensitive to pressure and tilt so you can easily vary line weight, create subtle shading, and produce a wide range of artistic effects. And you can surely rest your hand naturally on the screen. Ergonomic and Magnetic Design: Features an ergonomic design that rests naturally against the curves of your hand. The stylus also features a simple, one-touch operation button. Furthermore, a built-in magnetic attachment connects firmly with the left side of the surface device. High-Speed Charging: Last for over 50 hours of writing time on a 20-minute quick charge. You can get up to 100 hours of writing time on a 1-hour charge. Perfect Match: Uogic Ink 581 Stylus Pen compatible with Surface Pro X, Surface Pro 7/6/5/4/3, Surface Book 3/2/1, Surface Go 2/1, Surface Studio 2/1, Surface Laptop 3/2/1, Surface 3 Tablet (87)