With my 2E1: "Two Ears in One" true stereo headphones, if you recently lost hearing in one ear or if you have always been single-sided deaf you can now hear audio in true stereo via a headphone! ~ That is what "2E1"™ means: "Two Ears in One"™ Separate Left & Right channel speaker drivers producing true stereo audio for one ear! ~ No more down-mixing of the two channels stereo audio signal into one channel mono! ~ I make a 2E1 headphone model for all budgets and uses so please feel free to ask me which of my 2E1 models is right for you. ~ Click my links below for more information about the 2E1 or to contact me directly.