Description: Support 1500 Writing Hours Using AAAA battery. With low-consumption design, The stylus supports up to 1500 hours of writing time. After 10-minutes without using it will enter enter the Power-saving mode. No need Bluetooth or any paring, it will connect the computer automatically when touching the screen. One-click and start to write. Palm Rejection Palm rejection capability allows you to rest your hand comfortably on the Surface when writing and the devices won't register any marks. Handy Hotkey Two buttons on the side, you can easily and fastly use erase and right-click function. Ergonomic Design Lightweight and slim pen barrel, comfortable to hold. The middle-placed battery design makes weight balanced on both ends, won't feel tired after all day using. High Precision & No Latency Premium made 1.2mm flex & soft nib is precisely accurate, giving you a perfect on-screen experience. Hassle-free Pen Tips Tool Replacement tool helps you replace the pen tips much easier. Replace the pen tips won't hurt your fingers anymore. Convenient and Portable Pen Clip Design is very portable, easily attach to your protective case, sleeve and so on. You can casually bring The stylus everywhere you want. When you need a pen, it is right by you. Specification: Color:Silver,Black Size:145mm*10mm Number of Batteries:1 Lithium AAAA batteries required. (included)