Perfect stroke keys Spherically-dished keys match the shape of your fingertips, offering satisfying feedback with every tap. Smart illumination Features hand proximity detection and automatic backlighting. Wireless technology Enables reliable connection via the included USB wireless receiver or Bluetooth Low Energy technology. Comfort and stability Type with confidence on a keyboard crafted for comfort, stability, and precision. Multidevice and multi-OS compatibility Compatible with Windows, macOS, Linux, iOS, and Android systems - pair it with up to three devices. Flow cross-computer control Type on multiple computers in one fluid workflow. USB-C rechargeable Full charge lasts up to 10 days - or up to 5 months with backlighting off.