MacSpeech today announced the certification of the Revolabs xTag wireless microphone for use with iListen speech recognition software for Mac OS X. The Revolabs xTag wireless microphone system brings audio performance to the individual workspace. The desktop system connects to any Macintosh computer via USB without the need for additional software. The xTag is an ideal solution for demanding personal audio applications such as iListen, Webconferencing, podcasting, Skype, iChat and Google Talk, among many others. The xTag has eight hours of talk time and charges from any USB port. It is available from the MacSpeech online store for US$249.