These are the clarity headphones that allow those with mild to moderate asymmetrical hearing loss to balance audio by shifting sound to a perceived "center of the head" position. Shown in an audiologist-conducted clinical study to provide an unprecedented, satisfying listening sensation for those with hearing loss, the headphones provide an in-line control wheel that enables wearers to balance sound to the desired left/right position. Winner of the Design and Innovations Award at the Consumer Electronics Show, the headphone's patented active noise cancellation technology also reduces undesirable sounds and background noise by soft-clipping distortion and enhancing higher frequency harmonics for perceived loudness without the need to increase volume. Its padded, full-sized swiveling ear cups and adjustable headband provide a comfortable, optimal fit. Two included AAA batteries power noise cancellation function. Removable 5' headphones cord comes with 1/4" and 1/8" stereo adapters that connect to any audio source. (1 lb.)