The DJ controller, or software program used by your DJ is also important. You want a DJ controller that is compatible with your DJ software, especially if your DJ is a professional who uses a lot of expensive software. Some of the more advanced DJ programs can require certain hardware to function properly. Before purchasing a DJ controller, check to see if your software requires certain features. You can usually just download the latest version of your software from the Internet and then get your own DJ controller. Make sure you are comfortable with your DJ controller. If you are new to DJing, you may find it difficult to set up a few different parameters on your controller to make it easier to use. Some DJs prefer the traditional knobs and buttons that came with their first system to the more complicated multi-button features of their second and third systems. There is nothing wrong with this, so long as the knobs and buttons that come with your system are comfortable to use. and can be used for performing the tasks they are designed to do.