The Reloop Mixon 4 is a 4 Channel DJ/Midi Controller that works with PC, Mac, iPhones, iPads and Andriod devices.
More details about it can be found here: https://www.reloop.com/reloop-mixon-4
and here's a video about it: https://www.youtube.com/watch?v=S6t4WAj-G54
Would come with all the required cables to connect to your setup (You would need to tell me what you're going to be Djing off)
At the moment I'm just posting it up to see if there is any interest so message me if you want to use it. It's in perfect condition so obviously, you'd have to look after it :)