Should I test the dry bag to check the seal before each use?
Yes. Insert something inside the bag that is disposable such as a tissue, then place it completely underwater for a few minutes to make sure the seal is watertight.

Will Gooper's magnetic closing device harm electronics?
No, although special attention should be given to the proximity of pacemakers and traditional compasses.

How deep in the water can I take the dry bag?
We have tested our dry bags successfully 50 meters under water, both with professional divers and in a pressure chamber.

Please note, that before you take your cell phones or cameras deep under water, make sure with the manufacturer that they can withstand the water pressure at the intended depth.

Will credit cards be affected?
No. Virtually all bank cards today are encoded on high coercivity stripes and are not affected by magnets.

Do touch screens work through the pouch?
Yes. You can use your device with all its functions, including talk, text and camera. Video under water turns out crystal clear.