I have combined a light and sound machine from Tools for Wellness (dont see the model I used for sale anymore) in combination with a pair of Erostek 312Bs. The results were spectaular and thus I suggest the idea as a fute feature. Bascially strobe glasses with audio input all hooked up to the same music input running in the estim boxes. This blends light, sound, and physical sensation, all to the same input.