AZIO, a well-known keyboard manufacturer, has started shipping a Bluetooth version of its well-received Retro Classic Keyboard. Originally released via a Indiegogo funding campaign as a way to increase the product's visibility, AZIO has now put a few more dollars into the keyboards' development, and included a Bluetooth model. Not so retro now, I'd say, as wires are part of a retro product's flair.The AZIO Retro Classic Bluetooth version comes with a 6,000 mAh battery, which should enable a one-year autonomy sans backlighting, and two months of it with backlighting on. Charging is done via a USB-C port, which also allows the keyboard to be used in wired mode. Another upgrade is the toggle switch to automatically change between Windows and Mac layouts. There are both Windows and Mac layout keycaps included, too. The Azio Retro Classic Bluetooth is available now, in four colors, for $219.99.