...probably lasted 6-8 years. Awesome battery life. I thought it wasn't recharging because the recharge light stopped coming on, so I bought that cheap pair a few years ago as a replacement. The light started coming on with the original cheap pair so I used it another year or two before they finally died and I switched to the 2nd cheap pair (that just died). I think Costco had these Shokz on sale about a year ago, so I picked them up then. I just broke them out of the box today.