The best Sony noise cancelling earbuds. I know the battery last longer, I lost track of time because I was enjoying it too much while doing my work but probably between 6 - 8 hours long with noise cancelling. Everything is perfect and I hope it won't have the same problem as WF-1000XM4 which the battery drain all of a sudden without Sony explaining WHY? Luckily they gave me full refund! and that's why I have to buy this one, and it works better.. feels more comfortable and looks more stylish.