Can this keyboard be wireless?

It depends on the keyboard.

For keyboards in the Halcyon Series, including the newest revision Kyria, the answer is: yes! We've made the controller hot-swappable, and we have developed a wireless controller for it. The Halcyon build guide will tell you how to install the Halcyon wireless controller and battery boards.

For keyboards in the Aurora Series, the answer is yes! You'll need to add a pair of nice!nano controllers, and you'll have to source batteries for your keyboard. The Aurora build guide will tell you how to install the nice!nano and the batteries.

For other keyboards, if the keyboard comes preassembled and wireless functionality isn't advertised on the product page, the answer will be no. If the keyboard needs assemly and is compatible with the nice!nano, then it can be made to be wireless.