Simply does what it's supposed to do.
Very nice and simple interface allows you to fine tune the tone of two audio sources, as well as the ocilation rate. The mechanism for this is a simple drag and position graph, where you can set the frequnce of the tones used by going up and down the graph, as well as the ocilation rate by go side to side on the graph. This allows you have mutiple possible sounds for any given binaural ocilation, for instance lower pitch and higher pitch 40Hz "brainwave" positions.