Bigbruin.com posted a review on the Acoustibuds Earphone Adapters

Acoustibuds are adapters that can change normal earbuds to fit in the ear canal, while also adding passive noise canceling. They fit a wide range of earbuds, allowing the owner to continue using their favorite pair with more functionality and less dropping out. We will try them out on several pairs of earbuds to see how they fare.

Acoustibuds Earphone Adapters Review