The FocusBand is undoubtedly the most beautiful technological surprise of 2016. The big helmet ended because the FocusBand is an electroencephalography (EEG) technology. It is a brain scanning method that measures the electrical activity of the brain using placed electrodes. in the headband Similar to the electrocardiogram that allows the study of cardiac function, the EEG is a painless and non-invasive test that reports the neurophysiological activity of the brain over time and, in particular, of the cerebral cortex. It is used in many sports and golf, it allows us to measure the state of our players before, during and after the gesture.