Those who place great emphasis on comfort, almost perfect workmanship, durability and sound quality will be at the brand Sennheiser always find something and not be disappointed. So also with the CX 686G sport earphones. Any smartphone are attached earphones that you can usually thrown away after only a short time because they have deficits and wobbles. That does not happen with Sennheiser. These usually hold over the warranty period. However, I think the CX686G earphones for sports less suitable, as it is advertised for this purpose. For jogging, I would rather buy myself which wirelessly with Bluetooth connectivity. If someone looks for solid earphones for cycling will be well served with this product. I am highly satisfied with the product for my purposes.
