All Specs The $69.99 Microsoft Designer Compact Keyboard is the quintessential office peripheral's natural evolution. It’s incredibly compact and thin, exuding that sleek minimalist vibe coveted in professional spaces. The keyboard tweaks convention to make things easier for casual users, but not in any way that confuses or hampers traditionalists. In fact, its typing feel mirrors what you’d get from a laptop, which has become the default experience for most people. The Microsoft Designer Compact keyboard is an outstanding version of that very conventional office keyboard, with its lightweight build and long battery life. Unfortunately, it also requires four CR2032 batteries.