I bought these for working on wards all day as we have to wear black and all my other sketchers are not black! The glasses came way earlier than expected and the packaging was done with a lot of care. Buying a new pair ASAP. The headsets worked quite well, but two issues have surfaced. Its a huge pack. What is in this product that causes your skin to feel like it?s on fire? Made my skin feel extra dry. La cuffia e molto ben costruita ( affidabilità e durata di vita assicurata si)Le prestazioni sono importanti per:Sensibilità ( associabilità con tutte le uscite degli amplificatori in commercio )Indossabilita ( anche dopo sedute di alcune ore si desidera continuare lascolto senza fenomeni di affaticamento )Gamma di frequenza al limite delle possibilità uditive umane. then whenever you are going to make a call using "ok Google" you will have to have exact precision within 3 seconds press or else you going turn off the headset if you press the call button longer than about 3 seconds then you will have to wait for pairing again. Really cute and comfortable ! - Will not pair with computers running windows 10 and bluetooth version 4.