Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waterproof Case makes Underwater pics Crystal Clear

I had hoped to be able to take some great pics with the underwater housing, but am stunned by just how good it is. The detail in the pictures is crystal clear. It allows you to use every function of the camera. It also means you can film underwater, and the sound is very clear. It was a great investment to compliment a fantastic camera