Chorus, Flange, Trem... What more do you need. When they're this good, you don't need a whole lot more when it comes to modulation. This pedal gives you authentic bucket brigade chorus soundm tube driven trem and a beautiful studio quality doubling effect. If you need a good modulation pedal, this is the ticket. So much goodness here. • MFSKU UA-ASTRA-U • UPC 819937002861