I bought the last one from an Oxford branch. Original price was listed as around £30. Can't find it on their website. Commtel's product page is here:http://www.commteluk.com/catalogue/computing/voip-telephones/voip-telephonehandset-conference
"Works with Skype software. This product works with the Skype API but is not endorsed or certified by Skype. Hands free speakerphone with mute, volume and Skype controls. Ideal for conference calls. Free internet calls using Skype(software included). No external power required."