Raindrop Rain Cloud Humidifier Aroma Diffuser Raindrop Rain Cloud Home Colorful Mushroom Light Humidifier Extra long-diffusing oil can last more than 48 hours Diffuse essential oils once you add water Use running water to slightly humidify dry air without adding too much moisture to the air, add a relaxing touch to your living room, office, bedroom or any ambience you need The place. Flowing water can add some negative ions and energy to the environment 7 Color Changing Lights Night Lights create a relaxing and comfortable atmosphere, good for sleep The product is made of BPA-free food-grade materials and can work alone without connecting to a power source. After the battery is fully charged, it can work for more than 15 hours. Single actual size 21.5*21.5*26cm