Perfect stroke keys: Spherically dished keys match the shape of your fingertips, offering satisfying feedback with every tap Comfort and stability: Type with confidence on a keyboard crafted for comfort, stability, and precision Smart illumination hand proximity detection and automatic backlighting Flow cross computer control: Type on multiple computers in 1 fluid workflow Multi device & multi OS: Compatible with Windows, macOS, Linux, iOS, and Android systems – Pair with up-to 3 devices USB c Rechargeable: Full charge lasts up-to 10 days – or up-to 5 months with back-lighting off