Super poor. I have a Samsung S21 Galaxy. Cannot detect my E8 ear buds. Tried 10 times. Seriously? Tried again, still doesn't work. Put them in the bin. Also basically reading quite a few reviews, their system doesn't work with Android. Seriously? I mean seriously? All I can see is "we are sorry". No, you are useless. It was a gift, i would never buy b&o products. I knew why now I am completely sure why. Jokes. Sorry but jokes.