Right way to say this

I was watching a TV drama along with my friend recently when this scene came up.
Scene goes something like this :
Two guys were having a conversation when a third person overhears their conversation from a far distance .

I wanted to ask my friend "is it possible to overhear the conversation to such a long distance". But I felt that something was off with the sentence . Is it right to say to such a long distance. If not what alternatives would you suggest