BRN-FREQ, a pocket sized and portable device, uses Binaural beats to control your brain's neuronal activities. Best used with headphones, it creates one tone in each ear beating at the same frequency. By a simple twisting movement the user can get the two tones slightly off sync. Your brain then creates a third tone trying to close the gap between each ear. 4 categories are guiding the user through the product’s modes : the bed, the relaxed chair, the thinking chair and the working chair. It also reacts to your surroundings creating a live soundscape making each experiences unique.