Try before a definite opinion but at now seems an excellent innovation.
The product design as simple and small as possible. Concept is: everything is on PC or audio interface isn’t on PICratchBOX! Then you must using headphone inputs on the audio Interface.
PICratchBOX is a USB powered DJ / MIDI / OSC controller with 24 pads and Infinium faders installed on both X fader and Volume faders.
Currently only supports Traktor Scratch Pro / Pro 2 when used as USB /MIDI mixer.
all specs and info:
http://atelier.tkrworks.net/controller2802?lang=en
midi mapping – http://atelier.tkrworks.net/controller2834?lang=en (with downlad MIDI mapping file)