Hear that? That's the sound of a million new products being introduced here in Vegas in glistening 7.1 Dolby surround sound, no less. Turtle Beach has just ushered out its new flagship device, the Ear Force PX5. Designed for use with Sony's PlayStation 3 (but perfectly usable with the Xbox 360 or any other audio source), this here gaming headset is wireless in nature and is the company's first to incorporate dual radios -- one for surround sound, and another for chatting on the PlayStation Network via Bluetooth. Moreover, the BT feature can be used to accept mobile phone calls or listen to audio streams,
