Purchased last month and used for about a week. Please check the remaining liquid in the photo. I bought this because my elderly cat started meowing, but we found another cause, so I'm selling this. Recommended for those who wanted the main unit or want to try it out. Purchased on Amazon for 4980 yen. Catwell Cat Pheromone Liquid Diffuser - 1 dedicated diffuser + 48mL liquid. USB, so it can be used anywhere. Supervised by a veterinarian to reduce stress and anxiety. 30-day starter kit. #Feliway #Catwell #CatPheromone #CatRelaxation #CatNightMeowing #CatSeparationAnxiety