With a simple click - ink is ready to write, draw, and highlight - making it the best, most intuitive stylus for windows to date. Built on microsoft pen protocol (mpp), the ink is instantly compatible with many microsoft devices. Don't waste time connecting to apps. Capture inspiration when it strikes. Features adonit ink uses microsoft pen protocol which has features: pressure sensitivity & palm rejection adonit ink is a standard microsoft pen protocol (n-trig) digitizer and does not require to be connected to windows via bluetooth two shortcut buttons allow you to erase and right click with ease easy to use