The first time you exchange the cover with the band, it is believed to destroy almost the cover or the tape because you have so pull firmly to release it from the chassis. While the first makes a strange impression, but also conveys that the cover really holds very firmly to the chassis. The use of new coverage happens quite simple. The next exchange of course you already know how to proceed and it goes very quickly.
With the Flat Lens cover you really get underwater materialize very good video and the sound is also good transferred. This cover does not depend on a tape on the housing. You have to be aware so if one wants to take the camera out of the case.
The cover with the membrane for better sound transmission with a band depends on the housing and is otherwise exactly like the cover included in the camera to handle.
I am very satisfied with the purchase and these covers would recommend anyone buying the camera.