Needed a new pair for working out that was inexpensive. It was ridiculous, and I the other headsets would lose the calls in mid sentence. Los recomiendo demasiado, estoy muy feliz con ellos! Easy to install and clean finish. En estos se aprecia bien. Because the set I got were wired with the dialer thing, works on everything, it is beautiful and it also is the same, refurbished and/or new used, and it works like a dream. The quality was not what I expect of Clark’s, and the fit was poor I tried two different sizes neither worked. I tested them running my usual 5k and I didn’t have even the slightest issue with the earpieces coming out or moving. Setup: As others have stated, the instructions are poor. Just like the original super easy to replace old one just pops right off and new one pops right on.