Action Fit These headphones are clearly not high fidelity earphones also the manufacturer does not disclose about themselves, their strength is also the one hand it provides a very interesting insulation especially if like me you practice outdoor activities you enjoy them insulation and low wind influence on listening.
The bass is very deep too present for my taste on these headphones, I prefer listening to the podcast rather than on music during my workouts (muffled midrange and treble).
The cord is of good length and seems very resistant (it is given to hold a tension of 1 kg), the perceived overall quality is very good, I enjoyed the covers to replace silicone (3 pairs are delivered in addition of the one mounted) and the small carrying pouch average quality but has the merit of being delivered which is not the case with other products of the same price.
To: resistant, sound insulation, waterproof, sweat, and the cover provided replacement lids.
Against: low too present, acoustic fidelity.
Conclusion: not without a helmet at attractive price which will isolate faults but you very well once in place from the outside world, damages are so low that this product so I reserve for a podcast or use voice rather than it did wonders musical.