The FILTRATION II G String Noise Reduction pedal is the latest generation in noise reduction technology. The FILTRATION features improved Linear Time Vector Processing that offers the smoothest, ripple free approach in tracking the envelope of the input signal. The LTVP will instantly respond to short staccato notes and at the same time provide ripple free control of long sustained notes while downward expanding. The FILTRATION II pedal is easy to use and simple to operate