Baseball Cap monitors Brain

You’ll never look at a baseball cap the same way again with this specially modified headgear that is able to “continuously monitoring high-temporal resolution brain dynamics without requiring conductive gels applied to the scalp”. This superior baseball cap hides five embedded dry electrodes that contact the wearer’s forehead, with a single electrode located behind the left ear acquiring EEG signals. Data will be transferred wirelessly and processed in real-time in order to determine the level of drowsiness of the wearer (that’s just an example). I wonder whether wearing one of these while watching TV will allow it to read what are the products I want, only for the relevant ads to show up on my telly.