I'm looking for a digital voice recorder small enough to carry in my pants pocket or similar location :-). After studying on it a bit I think I know what features I want but the descriptions don't answer my main question which is:

If I carry one in my pants pocket will it pick up the other end of a conversation with the other end being as much as 8 feet away?

I see rather vague terms like "long distance" "short distance" "good distance" "far distance" "other end of conference table" but not actual distance.