There are plenty of standard keyboards available for iOS devices and Mac computers. If you are looking for a wireless keyboard inspired by typewriters, you should give Penna a look. This retro keyboard comes equipped with Bluetooth 4.2 technology and can register up to 5 devices. It has 6 months of battery life.
Penna’s Macro Bar lets you save frequent used keys and words to recall them at a later time. Diamond and Chrome keycap options are available. The Penna keyboard works with Android and Windows devices too.[where to get it]