As mentioned above, it is an evaluation that depends on the use we will make of the wireless keyboard and the device we want to connect to. Classic models with a numeric pad on the right, in addition to the multimedia controls and functions, consist of 104 keys (105 if they are ISO). From there, we find keyboards with fewer and fewer keys, reaching in some cases with 61 keys. The choice is often a matter of comfort and functionality. Among the most popular distributions are the American (US ANSI) and European (ISO) layout. From this choice, for example, the size and position of some keys such as "enter" will depend. It is therefore no small matter. We need to know which aspects to prioritize when working with the keyboard.