Dont take the marketing material at face value. I bought these as a gift, the person I gave them to said when trying to speak on the phone it was very unclear and hard to understand. nulla che non si possa aggiustare con un equalizzatore per smarphone o pc,ma comunque sono di base così. But we are talking seconds to adjust, nothing major. Ive had it up on a painted wall, holding a facemask and a headset next to my computer (see photo). Nice headset! Peace has returned to my word day. Thinking surely there wouldnt be any problems. They receive 5 stars. I found this very lightweight case, that fits the mouse and cord perfectly.