These are my first pair of wireless earbuds. I'll be honest, I should have asked to look at them out of the packet before purchasing, if I had I would have seen they have a much fatter body than appears in the photos, too big for my ears, so I am regularly having to notch them back into place. I wouldn't trust them to remain in place for exercise. No complaints re sound quality, but they do fill the space in that little bowl above your earlobe to the extent that they block out some degree of external noise. I realise this is a benefit for some people, but I prefer music as background and like to still have a bit of awareness on what is going...view more