I've used THESE (http://www.amazon.co.uk/Microsoft-LifeChat-LX-3000-New-Packaging/dp/B000JSDOMO/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1373248404&sr=1-1-catcorr&keywords=lx3000) for almost 3 years now. Astoundingly high quality sound and microphone quality for the price. Also very well built. Have always worked perfectly and still do.