I first bought the version of this headset that has a dongle for my PC to do VOIP calls. I needed it for work and used it A LOT, I really put it through its paces. It worked great for months, so I bought the version of this headset for my husband that doesn't have the dongle. Both worked for months. Then mine won't turn on. Customer service gave me some suggestions, none of which worked. They sent me a new one. I was delighted. The new one worked for almost a year then -- no power on, again. Then my husband's won't turn on.