As always, with Ugg brand, they are made very well and I expect them to last a very long time. Might be overly impressed with these. For those having the sub disconnect I fixed it by doing the following:- Turn off Eco mode. Crashes roughly every 5 min. Point of note however, the colours are no where near as vibrant as in the advertising. Other websites charge varies prices, that are double the cost. I’m not sure what that’s about and feel they just dont want to replace them. So I ordered size 10. A more intimate sound is the result. If it cannot handle 3 tabs open in chrome, 2 apps, and zoom, its a dud.