Echos on the other end

Purchased at Fry's Electronics. Unit was comfortable. Process of pairing with my Samsung A950 was easy enough. Reception sound quality was adequate, but not great... some static. However, callers on the other end would hear their own voice echoing back to them. When callers started telling me, "are you using that headset again? Take it off!," I figured it was time to give it back to Fry's before I lost my 30-day return option.