Hand held controllers may be convenient but not as versatile as UCCNC. The screen on the Axiom pro and basic controller, first you almost need a magnifying glass to be able to see and it looks like a throwback to the first computers Atari made (black screen, blue or green letters). You can use UCCNC on a tablet as well. It can modify RPM and feed rates like the hand held controllers but better and more efficient. You can modify the screens, there are diagnostics available, you can see your project being cut on the screen and at what point in the tool path you are. There is a real time clock that lets you know how long your cut is or has been. You can even edit the g code if need be. UCCNC far superior to the hand held controllers. Don't know why that is not an option here in the states.