The Electro-Harmonix Bassballs Nano is an ultra-compact version of the classic bass envelope filter from the 1970s. Sonically identical to the regular Bassballs, the Nano version is just a smaller enclosure for smaller pedalboards. Two sweeping filters dynamically adapt to each note you play, producing vowel sounds that are perfect for funk bass. Need some extra dirt and sustain for a solo section? Flip on the fuzz circuit and have at it.