Those clips are not very robust
I was cutting the grass at my moms couple of years ago, back in days before Otter Box. And was have a good old time jamming with with my IPHONE and stereo Bluetooth when I felt the mower chunk followed by a squeal in my ears. It took about a millisecond to figure out what happened. I looked around the yard but could not find it. I located it in the street, still lite up, right before a big Dodge work truck put it out of its misery. Many other cars, trucks, and a city bus took there turns before I could recover, the litter. Knew a guy who lost his pouring a foundation. It was still taking calls even after it cured hard enough to finish. Long live Otter Box, until something cheaper can do the same job.
Was nearly done and was trying to do some edges