Is there much of a difference between the Kayfun Lite plus V1 and V2?

[mdjtenfour]

Are there any differences in the Version 1 and version 2?

 

[ignotus]

The most conspicuous change is a different mouthpiece, but the underside of the top cap was redesigned as well to help keep the small o-ring in place. The engravings on the bottom are also slightly different.