Razer's Carcharias headset is yet another audio-related diversion for the input peripheral company, and as with its mighty impressive Mako 2.1 sound system, this here headset was remarkably solid.

ENGADGET: Razer Carcharias headset: unboxing and impressions

The researchers have developed ways to control gadgets, such as personal digital assistants (PDAs) and music players, using 3D sound for output and gestures for input.

BBC: NEWS | Technology | 'Body talk' could control mobiles