Got this set of bluetooth headset from best buy because I download most of my music wirelessly to my phone of tablet , so now my music be always with I and since these be wireless everything just work out better . for a behind the neck style headset these rocketfish have a excellent fit , very comfortable . I have be look for a new headset for jogging and these seem perfect , no adjusting or fiddle what so ever they stay put and feel great !! the bad part be they sound like a cheap set of headphone , very flat with no low end and even distort when they be try to produce the poor sound weak bass that they do put out . the mid and high range be not bad . if these could produce a wider and more full frequency range they would be fantastic , five star . I dont mean to nit pick but i have to hold my audio gear to high standart weather its home stereo or a set of earbud . I belive poor sound mean poor sound engineering . as I say before I love the fit and functionality of this headset and if they have more low frequency response and less distortion they would be perfect ! sorry to say they have to go back .