Snowproof Shockproof Dustproof Sandproof
Snorkeling , Swimming , Surfing , Outdoor Sport and hard environmnet working etc.
Durable metarial prevent from scratches, drops and impact
Heavy Duty Armor Rugged Protection but ultra thin and lightweight add no bulk.
Submersible test to 2 merters deep for half an hour
2 merters drop test for more than 1000 times.
Please do water test with a papper before use.