Even so, the headset is much better than what you can find in Dollar Store, or Below Five; and at least the same quality when compare to what you can find in the market for $10 range,Sound quality is not bad, no heavy bass - if you are looking for that :(Noise cancellation is done by good seal of earbud, I dont think there is electronic circuit for that. Finally, I think the Earfun logo is pretty cheesy compared to the refined Fiil logo, but that personal preference and you might feel differently. * To be fair, there is an open-source project called OpenRazer that reverse engineers Razers hardware and software so that Razer devices can work on Linux. Die gesamte "Arbeit" wird auf den Computer ausgelagert und scheinbar mit so instabilen Softwarelösungen, die durch das Starten von unterschiedlichen Programmen so stark beeinflusst wird, dass es quasi unmöglich ist langfristig sicherzustellen, dass das Knacken / Abbruch des Sounds nicht vorkommt. Music sounds really clear and it’s comfortable to wear for extended periods of time. Great sounding basses, nice isolation and surprising sound quality. The only issue I had is one that most other chargers haven’t addressed either. I also hoped it would have had a newer or at least a better hanging hardware. No major complaints right now. Maybe this is a safety feature?