Pros Cheap, comfortable, even length (not one earbud longer than the other). Not sure the average lifetime of headphones but these are good for at least a year or two (mine lasted two years). Good sound quality...and of course the comfort.
Cons Sometimes falls out of ears, but for the most part secure.
Summary I'm really sad that Target has stopped selling these headphones because they are cheap and super comfortable. I actually was browsing the headphone selection at Target and gave my opinion on the crappy cheap Sony headphones to a guy and he said he was looking for the Jelleez ones too. I had to find my latest pair at Walgreens of all random places. For the price you can't get a better and more comfortable pair of headphones. No worries if you lose them, but they are seriously comfortable. I've even been able to go running with these (the earbuds do fall out sometimes but that happens most of the time when running with in-ear earbuds)