I bought a set of Walkers from Amazon earlier this year and promptly returned them - sound quality was terrible, with hum, distortion, and static. The volume from one ear to the other was also badly mismatched. I ended up buying another set of Pro-Ears which were far and away superior to the Walkers. (I have an OLD set of Pro-Ears that still works fine, made before the company was bought out - probably 15 years old or so. Sound quality of the new PEs is audibly better than the old PEs - and both are FAR better than the Walkers.)