BOSS CE-2W Chorus provides two modes of chorus and one mode of vibrato in a single stompbox enclosure. The pedal’s Standard mode faithfully reproduces the sound of the original mono CE-2. The dual CE-1 modes, on the other hand, provide the tone and timbre of a vintage CE-1 – its stereo chorus and vibrato are both represented here. Furthermore, a couple of additions bring the pedal increased functionality over the original CE-1 and CE-2. Such additions include variable chorus depth control in CE-1 mode, as well as two output jacks for an expanded stereo sound in CE-2 mode, which enables you to route your signal to dual amplifiers, if stereo chorus is your preference. Purchase of this pedal includes a 9V battery.