Sennheiser Adidas CX 680i Sports Headset user reviews

Pros - resistant against sweat and water as advertised
- cable material surrounding it is good quality
- ear buds don't come off too easily(but in time they will)
- average sound quality

Cons - too long cord(totally pointless)
- problematic ear buds(biggest flaw)
- not too resistant after all

Summary Me and my brother bought those headphones with great expectations especially for when doing sports but in the end they both failed to serve what they're advertised. We're both disappointed in Sennheiser since their engineering is usually nice.

All right. This headphone has average sound quality which is enough for when doing sports. And it's resistivity against sweat and water is a nice touch BUT...

For both of us the extra ear bud piece that prevents it from falling from your ear failed at the beginning. So we started using without it but then again they started to fall when doing sports. In other situations it was fine but then it becomes pointless because these headphones are especially for sports. It was falling then again because their integrated controller is too heavy and pulling the buds down. It's a design flaw to be exact.

These headphones aren't that resistant when it comes to cable resistivity. Both headphones ended up getting their cables broken even though we look after them with care.

And finally it's cable length is pointlessly long that keeps getting in your way when you are running.

All in all my advice is that DON'T BUY THIS HEADPHONE. THEY DON'T WORHT IT.