Beats Flex fail routinely after exercise

Based on what information I have gathered about these Beats Flex, they appear to be neither water- or sweat-resistant, let alone waterproof ... which tends to make me think that they would not make for a good thing for workouts at a gym. Just a thought, especially since you had them fail multiple times already.

You may find the following PC Magazine review interesting: Beats Flex Review

AFAIK, I haven't found out anything related to how intense of a workout level can directly affect the Beats Fit Pro earbuds to cause damage ... or any other brand of earbuds.

What exactly failed that you had to have them repaired twice so far?