The Alexander - F13 Sci-Fi Flanger Neo Series adds some great updates to an already fantastic flanger pedal. Now with an updated preset control and easy-to-use MIDI expression, take a dynamic approach to controlling your flange effects. Four different modes take you through the gamut of interesting possibilities. "Auto" is a traditional flange with an LFO that is "hypertriangular" staying on the more interesting guitar frequencies for longer. "Step" contains a ton of cool, robotic sounds with jumping and quaking pitch effects. "Dyna" sets the delay time with the volume of the input signal. Very odd sounds are worth exploring here... different input levels and using different pickups can make a big difference. "Echo" brings in a delay with the flanger effect making for thick and dynamic soundscapes. Like an artifact found near Area 51, you'll wonder what out of this world sounds this pedal can product and from where it's origins lie.