"Finally, people with significant physical challenges (even visually impaired) can operate their own calculator!" RJ
Nothing fancy, just BIG, user-friendly, and not too pricey! Put it on a lap tray, a lap, the floor, or the sofa! (this unit is not meant to be hand-held; it's just too big).
Why is this more than other similar items I've seen?
1) Ours talks
2) Ours is available with an optional keyguard
3) Ours comes with the flip-stand
The BigCalc is the yin, to your yang. You've found what you're looking for.