The Neets keypad range is five products with different capabilities, OsCar with 4 buttons and the rest are 8 for example, SieRRa II is a hybrid, because it also host a UI for use with Neets Touch panels or iPad or iPhones.
All buttons are assignable and the label is fully customizable, so imagination is your only barrier.
Watch this video to understand the keypad controllers and their differences.
The comparison chart from the video:
