I bought these to help with the road and air traffic. I thought I would get a better result on the car traffic, but I can still hear the cars (this is a 2 lane street with no speed bumps and cars tend to speed). I knew I would hear the airplanes still so I am okay as it has helped a little bit. I think your prices were way too high for the product received and would not recommend your services to my neighbors. You are in between the Poor and acceptable rating. Thank you Terri