1. High sensitivity - 4096-level pressure point tilt sensitivity can ensure accurate sketching with almost no lag, and provide a natural feel like a pen on paper. Instant response, very suitable for handwriting, drawing, marking, signing, etc. 2. Easy to use - no Bluetooth-compatible connection is required, touch the screen to automatically enter the working mode. It has two buttons: the erase button and the right-click button, which is very simple and easy to use. 3. Excellent safety - The pen has excellent safety performance. 4. High-quality materials - the aluminum pen body with a stylish matte surface provides you with the comfortable feel. Comes with a sturdy clip, suitable for being clipped in books, pockets, etc. Lightweight and portable, convenient for you to store in bags 5. Easy to use, wide compatibility, The stylus pen can be used for drawing, writing and annotation, very suitable for presentations, notes and design work. Includes replacement nibs to prevent wear. Pressure sensitivity: 4096 pressure levels Button: Eraser/click right button for prvious/next page Battery: 1 x AAAA alkaline battery (included) Weight (with battery): 19.8±2.0g Weight (without battery): 13.g±2.0g Length: 142mm/5.59inch Body diameter: 9.5mm/0.37inch Compatible model: 1. For Microsoft For Surface 3 For Surface Pro 3 For Surface Pro 4 For Surface Pro (2017) For Surface Pro 5 For Surface Pro 6 For Surface Pro 7 For Surface Go For Surface Book For Surface Laptop For Surface Studio 2. For ASUS For Transformer Mini (T102HA) For Transformer 3 Pro (T303UA) For Transformer 3 (T305CA) For Transformer Pro (T304UA) For ZenBook Flip S (UX370UA) For Vivobook Flip 12 R211NA, For Vivobook Flip 14 R211NA 3. For HP For Envy