Topre Elecrostatic Capacitive Switches eliminate key chatter, while providing supreme tactility, extra comfort, keystroke precision and of course, the famous Topre 'Thock' sound Compact 60 key layout that minimizes finger movement and maximizes efficiency; Ergonomic design suitable for programming and long text writing Create Keymap settings which are saved in the HHKB so you can use it with different devices and Customizable DIP Switches enable you to change mode for different OS (Microsoft Windows, Apple mac, etc) Connect to your PC via USB (Type-C), or connect to your PC, Tablet, Smartphone (iPad, iPhone, Android) via Bluetooth multi-pairing, instantly switching between up to 4 devices with keyboard shortcuts High-Quality frame and keys - Sculpted keycaps and spacebar made from durable, shine-resistant PBT with dye-sublimation printed legends The HHKB was designed for programmers by programmers to provide a unique keying experience and to reduce hand and finger fatigue. Unique characteristics include Electrocapacitive Switches, compact 60 key layout and USB or Bluetooth connectivity.