The first thing I did when I received this suitcase was to put tissue paper inside and hold it under water; it has not expired. The problem is that after only 7 months the hinge broke so now it's unusable. I've only used this case when I've been in the rain and that was only about 10 times. I don't recommend spending money on it. Even though it's waterproof, it's not strong enough to protect your Apple AirPods.
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