Typewriter design, while adopting the most up-to-date technology. That is the focus of Soquel-based company Elretron, who is going retro with the PENNA keyboard. And although these keyboards look like they come from the past, they are bluetooth enabled – which means PENNA is compatible for use with any device that enables bluetooth connectivity. We’re talking iOS devices, Google devices, and even personal computers. Features include: cherry key switches, backlit keys (certain models), multi-modes, long battery life (~6 months), and comes in 5 colorways. My favorite colorway? Its gotta be the matter black.