Reactivates and enhances the vestigial human vomeronasal organ using snake and canine olfactory receptor genes. The result is a chemical sensing ability that operates alongside normal smell but processes different molecular information — pheromones, stress hormones, disease markers, and chemical trace signatures. Users describe it as 'tasting' the air in a way that provides emotional and biological information about nearby people. They can sense fear, arousal, illness, and deception through airborne chemical signatures. The modification includes tongue-flicking behavior in some installations — a rapid tongue protrusion that draws air over the enhanced organ, increasing sensitivity. Many users suppress this reflex in public. Zheng-Dao Bioelectric's premium version routes the chemical data to conscious awareness as distinct 'flavors' rather than vague impressions.