Texas instrument calculator

Texas instruments TI-30XIS Calculator it works great it's solar powered I don't know much about them in pics theres one of inside of the case that tells about it it says 2 line display an TI30X IIS AND TI-30XIIB it also says other things too the calculator an the part that says the spects go together to make the case it's in it would be great for anyone who needs a calculator more advanced than a regular one