Mattoverse Warble Swell Echo MKII noise maker 9V Battery (not-included) or DC9V

9V Battery (not-included) or DC9V Power - Standard Boss Style Center-Pin-Negative power supply only (not-included): Current draw is dependent on the size of the external speaker cab

adding new features

and the Warble Swell Echo MKII in one enclosure

7 Day Return Policy

Mattoverse Warble Swell Echo MKII noise maker 9V Battery (not-included) or DC9VThe Warble Swell Echo MKII from Mattoverse Electronics is a lo fi echo exploration machine. A dynamic foot controllable swell feature and 8 modulation waveforms provide an alluring array of echo options. From silky smooth slapback and seasick swells, to the static filled wobble of a broken cassette tape and everything in between. The Warble Swell Echo MKII is sure to be a capable and dynamic companion on your next sonic space adventure. Foot