My wife and I burn through cords like there is no tomorrow. Our 2 pack of cords was purchased several months ago, both still work at what seems to be 100%. So as far as I'm concerned, they have outlasted and surpassed any other cord. I know the 7-11 and convienance store stuff is garbage, but for relatively the same price, you cant go wrong with the 2 pack. I believe they have outlasted the cords that were supplied with our phones.(no surprise there)