Just turned up, it's a weird experience and i can't imagine if i'm imagining it but i feel like i have a bit of a headache (wearing them at my desk). As mentioned the sound isn't brilliant, but for me it's good enough for whilst out running. The main test will be after work to see how much the sound of cars etc overpowers the music and if it ends up being pointless wearing them. Not sure why they couldn't use USB-C to charge though like some others in the range! Even micro-USB would be better than their own cable!