It's annoying. I had to purchase this separately instead of including it with my desktop system which I paid over $300 for, but it is what it is. Also, the key doesn't fit snugly in the lid, there's a bit of wiggle room that really shouldn't be there as it's designed to work with the manufacturer's own products. It would be nice to add a rubber grip to hold the case with the other hand when opening the diaphragm because it's a pain in the ass. In any case, it did what I needed, which is why it got 3 stars.
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