Two-Person Synchrony Training This is not something done very often, but training two people together to increase their brainwave synchrony can be done. Keep in mind, though, that there’s a big difference between doing alpha training or alpha theta training with two people and doing synchrony training. You’ll need something that allows you to send the same stereo signal to each of two headphones at the same time. Alpha training–or any frequency-band training–is easily be done with the FRE2C design. […]