This is the charging unit. It connects to the phone line AND to the computer. That's right boys and girls. With the bluetooth headset I can answer Skype, home or mobile calls all through one unit. Best part is that the handset has a belt clip so that I can attach it and walk all around the house talking on Skype. Tried it today and loved it.
I bought one of these the moment I read about them and I'm not sure how someone working from home can live without it. It just makes it easier. At least it does for me.
More information on the Plantronics site.