To order visit our website.. www.sastogadgets.com System Compatibility: Supports Mac, Windows, and Linux. It also supports Android 6.0 or later via an included OTG adapter, allowing you to use it with mobile phones and tablets. Battery-Free Stylus: Features a digital stylus that never needs charging. It provides 8192 levels of pressure sensitivity for precise drawing and writing with virtually no lag. Natural Tilt Support: Includes 60° tilt control to create more natural lines and provide acc