The Sennheiser Sports Headphones CX686G combine sport and enjoying music very well. When ear Buttons (3 essays in different sizes), they inhibit the ambient noise a bit and by extension they have extra support on the external ear. So you have free hands during exercise. The sound quality is very good for such a small headphone. Even telephone calls are transmitted well. The connection to the smartphone goes well, in which a device (Samsung) better at the other (iPhone) is not the full range of functions available. When cycling and similar sports, it may stand out negatively, as a break is not absolutely necessary for a telephone call. In intensive sports movement is, however, usually stops so that the other party has not only wheeze in the ear. Although it's not nice, then the smart phone can be operated directly.
I like the headphones very well and delivered with storage bag completes the picture.
