Function

• Both the MegaVibe and MojoVibe create the rotating speaker effect for keyboards, and both are modeled after the Univox UniVibes of the late 60s and early 70s. You can change intensity, volume and speed on both.
  
  

Price

• Both are considered the Cadillacs of keyboard pedals, but the MojoVibe is thought to be the lesser of the two sound quality wise. Both sell for a retail price of about $300, as of October 2010, but you can find the MojoVibe often on sale for less.
  
  

Features

• Both the MojoVibe and the MegaVibe have similar features, including chorus and vibrato switch. The MojoVibe is a hit with players, but professionals tend to gravitate toward the MegaVibe.