its just a great no frills, do the job, simple di box. it just has the jack input and two outputs one xlr and one jack giving you the option of having it loop into a monitor on stage. and then just a simple ground/lift switch. really straight forward and easy to use, i would highly recommend it for anyone on a budget or just looking for a cheap backup. the sound is good through our system but that is quite small so i don't know what it would be like when pushed at high volumes, but still for 20 quid you can really go wrong!