For those of you who want the very best, this is what you want. These will probably knock 45 to 50 decibels off outside noise. Many of you have bought the Shure earbuds to listen to music while mowing and those by themselves will be OK for almost everyone. These are made to attach to the end of your Shure earbuds or other high end earbuds and are the type of plugs most rock musicians use on stage. They are custom molded to your ear canal by an audiologist (ear doctor) and will run in the area of $100 to $140. With these in your ear you can listen to music at a normal volume and you will not even hear your mower at all. They are practically indestructible so you will only need to buy them once. Both right and left plugs are in the picture with one shown attached to an earbud.