THIS IS A SMALL HOME AUDIO MIXER FOR HOME USE MADE BY BEHRINGER EURORACK MODEL # UB - 502 DESIGNED AND CONCEVED IN GERMANY 5 INPUT 2 BUS. I USED IT FOR MAKING MY HOME VIDEOS TO CONTROL MY AUDIO SOUNDS , COMES WITH ALL ADAPTERS 2 MIKES AND CABELS NEVER HAD A PROBLEM WITH IT.!!!!!!. $200.00 ( OBO )