talking calculators

[Scott Howell]

Folks,

I realize this is off topic, but I need some help. Is there a talking 
calculator that has a fraction function which is not specifically a 
scientific calculator?
I had a scientific calculator that was some TI modle that was modified. 
It was expensive and didn't come with a manual that was helpful in 
figuring its functions. I don't really need all of the functions of a 
scientific modle, but the fraction function would be perfect. This is I 
believe the abc key that some have.
Does anyone know of such a modle? If not what is a good scientific modle 
that has a useful manual.

tnx
Scott