A home entertainment system comprises a sub-system with audiovideo functionalities, a computer and a device interface that interconnects the sub-system and the computer. The first conductive branch includes opposite first and second end portions and opposite first and second edge portions that extend between the first and second end portions. The coupling assembly may be an overrunning clutch assembly. The tissue container is also configured to be coupled to an injector assembly that can be used to move the corneal tissue graft out of the interior region of the tissue container and into an anterior chamber of a recipient’s eye. The wireless digital audio system allows private audio enjoyment without interference from other users of independent wireless digital transmitters and receivers sharing the same space. Wherein, when the connecting protrusion is in the stuck position, the male connector is non-withdrawable from the female connector; and when the connecting protrusion is in the releasing position, the male connector is withdrawable from the female connector.