I bought the HS-11W a year ago at a duty-free shop and opted for Nokia because I also have a Nokia phone. The sound reception is feeble. Same thing about sound transmission. Three times out of five, people ask me to speak louder. Once in a while it disconects from the phone on its own. Two months ago the ear attachement atarted going to pieces. I found out three things: a) other people had the same problem, b) The Nokia dealler does not have spares in stock, and c) the waranty was for six months only.