Logitech has announced that they have upped their Vantage Microphone (shown here) to make it cordless. They claim 20 hours of battery life, a range of up to 30 feet, and 2.4 GHz technology in its USB receiver that doubles as a mic stand. The device is compatible with Playstation 2 and 3, and Xbox 360. At a price of $79.99, the Vantage should make a December appearance in the U.S. and Europe.