For fast typists or those with large hands, most folding keyboards are just too small for comfort! This sturdy Bluetooth keyboard features five rows of standard-sized keys laid out in classic keyboard style and properly spaced for accurate typing. They are topped off by a sixth row of function keys for frequently used Android, iOS, and Windows operations. Yet, when you are ready to go, it folds smaller than a paperback book and fits right in a bag or briefcase with your tablet or phone. This Plugable keyboard is elegantly engineered to strike a balance between these competing demands: The full-size keyboard layout features crisp high-quality keys, yet folds into a package smaller than a paperback book. The back and sides are strong but lightweight aluminum. The hinges are stainless steel. This makes it extremely durable. It comes with a soft but strong case that both protects the keyboard and anything else you'd throw in a bag with it. The case transforms into stand for your phone or tablet and adjusts to any angle. The keyboard has special support for Android, Windows, and iOS key functions. Its USB-charged battery lasts for weeks of normal use.