I’ll be straightforward: I never ever left them on for eight several hours inside of a row, but I do know an individual with the WF-XM4s who sleeps with them in and told me they might last a complete night time – and also the XM5 battery life is purportedly https://allhealthmarket.com/product/smart-wearables/smart-electronics-smart-wearables/headphones/lenovo-hd200-bluetooth-earphones-over-ear-foldable-computer-wireless-headphones-gaming-headset/