Here is another mixer for livestream content creators. The Cooler Master StreamEnjin is ready for mixing and switching. It lets you stream content to up to 2 simultaneous CDN destinations at the same time. The companion iPad app helps you with overlay edits and previews.
This livestream mixer has a Storyboard with support for up to 8 preset scenes. It has a compact design with a handle stand that makes it easy to take the mixer with you everywhere. It measures 11.36 x 7.48 x 3.8″. You can find out more about it here.