1.[Compatible Models]This stylus pen is compatible with Microsoft Surface Pro X, Surface Pro 8 or 7 or 6 or 5 or 4 or 3, Surface Book 3 or 2 or 1, Surface Go 3 or 2 or 1, Surface Studio 2 or 1, Surface Laptop 4 or 3 or 2 or 1, and Surface 3 tablets. It is also compatible with ASUS, HP, and Sony series devices. 2.[4096 and High Accuracy]Support MMP2.0 protocol in this SSS¡¤GRGB pen allows you to precisely sketch and shade, with 4096 pressure sensitivities that respond to the lightest touch, providing a sensitive writing and painting experience. 3.[ and Quick Charge]Direct use, no need to install Apps and connect to Bluetooth. It can be used for about 80 hours after being charged for 20 minutes. It can be fully charged for charging 1hour. It will switch to power-saving mode after 10-minutes idle. Pressing any button can wake you up from the power-saving mode. 4.[Magnetic Attach]Magnetic adsorption design.You can place gently carry the pen on the LEFT side of Surface Pro or Go or Book, it absorbs immediately. Wherever you go, you can use it without losing your pen.