Chorus - A lush and warm sounding chorus, a fluid and dreamy multi-chorus, and a unique tremolo'ed chorus Flanger - A classic tape flange, a 70's negative feedback type flanger, and the elusive thru-zero flange Vibrato - A standard vibrato, a classic vibe sound, and a rotating speaker effect. 8 Presets - Up to 8 custom presets, easily accessed with the touch of a button. Advanced Configuration - Lets you customize the functionality of the Nebulus to suit your needs. Special Switch - Allows you to tweak settings important to the mode you're using, making the Nebulus even more customizable Tone - Choose between warm, clean and bright voicing for each effect. Soft Touch Switches - Soft touch switches control a relay bypass making transitions as smooth as possible. True Bypass - The Empress Nebulus employs true bypass, so you can be sure that it's not affecting the signal when disengaged. Small Size - The enclosure measures approximately 4.5" by 3.5" by 1.5", which is delightfully small when considering all the features packed into this unit.