If you want to get technical, it's 1.0, 1.2 and currently 2.0 but you're right, the one pictured above is the first one, I liked it better of the first two, EQ defeat is niceOkay here's the way I understand it, this is not official.
V1 = what you have. Original version.
V2 = same basic thing, but instead of EQ Bypass, there is a Mute switch.
V3 = the current version. Smaller box, one button, one mid control.
Here is the page for V2:
https://www.broughtonaudio.com/product-page/messenger
Again, this is not official and I could be completely wrong![]()