Our Brain-Surf Pro Headband uses EEG technology. EEG utilizes electrodes consisting of small metal discs with thin wires that are connected around the scalp. The electrodes detect tiny electrical charges that result from the activity of your brain cells. Through this process, it uses your brain activity to pick up and interpret your 6 core brain waves. It is made from comfortable, soft, lightweight and sweat-resistant material designed to feel like a standard headband on your head, so you can stay active while wearing our Brain-Surf Pro Headband.