LifeProof iPhone 4 / 4S Waterproof CaseProduct Review (submitted on August 14, 2012):
I bought this case because my company iPhone 4 had sustained some water damage and it was irreparable. My employer gave me a new phone. I didn't want to go through the embarrassment of asking for another replacement phone, so I thought I would give this a try. Well, a couple of weeks after I put the case on the new phone, I couldn't find my phone one day. My Wife eventually found it - IN THE WASHING MACHINE! It had gone through the complete cycle and everything. I couldn't believe it and thought for sure that despite the waterproof case, it would be dead as a doornail. Well, I was blown away when the phone turned on right away. I took the case off in case there was any lingering water inside, but nope - completely dry! I was blown away!
I have not had any audio issues with this case. The only "issue" I did get was some of the "rainbow effect" or Newton rings on the display cover. I have since added a puff of baby powder inside the case and the issue is gone.
I have had many cases including several otterbox models and this is the best one I have had. Highly recomended.