I'm looking for a cheap wireless airmouse to replace the following: https://www.amazon.com/Aerb-Wireless-Keyboard-Multifunctional-3-Gsensor/dp/B00K768DHY

That remote is okay but the back button on it doesn't work on the shield tv. It instead seems to be mapped to a right-click and there's nothing I can do about this (key remap apps don't work for this button). I'm getting around this by mapping the ESC button on the back keyboard to the back button but this is annoying and don't want to have to do this. The back keyboard is also buggy sometimes but I believe I may have just gotten a defective unit.

Any suggestions? I mostly use Kodi, Netflix, and cartoon network/adult swim apps (side loaded so I need the mouse for this). And this goes without saying but the back button should work.