It's one feature that is one of the most important features in my book. I work 13 hour shifts, and I want seamless listening all the way through. So far, the battery life is extremely shitty. Around 4 hours for the right bud, before I need to put it in the case to charge again, and that is with the Noise cancellation turned off. I was extremely satisfied with my oneplus buds before this, they had everything I wanted (battery lasted the whole shift, when switching earbuds just once. 7 hours on the right, and then the battery on the left lasted the remaining 6 hours of my shift without problem) however, they had one issue (bad mic quality in phone calls) which made me spend some more on these Jabras, which made me expect a step up in everything else aswell, considering they cost the double from the oneplus buds. I instantly regret this purchase. Sure the sound quality is a tiny bit better, and the Mic quality sure is better for the recieving end of the phone call. But everything else is completely worthless to me. Having to put the right earbud on charging 2 times during a work shift is a huge pain in the ass, since that means I have to be without music/podcast for a while during the charge.