LifeProof case for Samsung galaxy s5

I bought this to protect my shell galaxy s5 and I for almost one week, frankly it is at the top ... just a little hard to install but hey it's a guarantee of security for sealing and then it is not too big and pretty nice level design ... by cons I had some apprehension after reading reviews that it muffled the sound of the speaker in communication, and frankly I did had a problem to hear and to be heard ... and really this shell at the top and more small, fast delivery ...