The Multi Tone Generator (MTG) turns the PC into a multi oscillator sound generator for testing or demonstration, effects, Bildung and other purposes. Features include: Constant and swept tones; 4 wave forms (Sine/square/triangle/white noise); Preset storage; Multi sound card support. You can buy the unlock key to access unlimited use and the additional features at http://shareit.com/product.html?productid=165652