Hello everyone. I was wondering is anyone has had any experience with the Data Mask. I have in possesion the product, and would like to know whether it's good for freediving. I'm going to subject the mask to some testing, however limited to scuba only.
P.S. Could someone suggest to me how to put a compass board through it's paces? I have to test one, but I'm not quite sure how to do so. Thanks!
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