Audio bit rate is cut in half when used over bluetooth, the sound these produce is disgusting. When connected with a cable they sound really great and seem to be a good bang for buck. Regardless, these are unusable as 'wireless’ headphones for PC. They sound horrible when wireless and I wouldnt put it any other way. They come with a 30cm cable to update when using with PC, cable length is too short and makes it awkward when trying to tamper with settings while connected and wearing them. Overall an extremely poor headphone with even worse compatibility. Sound quality I have experienced is poor, when connected with a cable it would be a solid 6/10. Also, spatial sound cannot be added wirelessly for PC, yet advertised differently. Avoid purchasing these, when it comes to audio make sure you invest in a reputable brand. Microsoft make software not audio, keep this in mind.