Basically, a portable mixing desk that's perfect for professional producers and novices alike. Propellerhead Balance is an award-winning 2-in 2-out audio interface ready to go straight out of the box. Looks incredible, and sounds even better, it hooks up to all apps and boasts 8 input connections and a headphone output and even arrives with its own software, "Reason Essentials," with a host of instruments and effects.