Durable, but can't screen shot or control volume

I have dropped my phone numerous times and it protected the phone. Great! My major issue with this case is you can't screen shot or change the volume with it on. It's something about the placement of the buttons on the left. Extremely frustrating and I'm looking into a new case just for that reason. If you're going to make a case to protect the phone, please make sure everything functions properly before putting it on the market. My case is now off and unprotected because I need to use the screen shot function for business.

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