1. Super Long Time of Fragrance Expansion: Use flowing water to diffuse essential oils, add water once, and it can last for more than 48 hours. 2. Built-in 2000mAh Battery: It can work alone without connecting to a power source. After the battery is fully charged, it can work for about 8-12 hours. 3. 7 Color Changing Lights: The night light creates a relaxing and comfortable environment, which is good for sleep. 4. 400ml Capacity: This air humidifier has a capacity of 300ml, which is enough to meet daily needs, you don't need to add water frequently, it is a good supply for daily life. 5. Wide Application: Slightly humidifies dry air without adding too much moisture to the air, adding ambience to your living room, office, bedroom or anywhere you need to relax. Flowing water can add some negative ions and energy to the environment. Mushroom Air Humidifier: Aromatherapy Machine Rain Drops Aroma Diffuser: Essential Oils Diffusers Installation: Tabletop / Portable Classification: Humidification Function: Aromatherapy Use: Household Shape: Cartoon Material: PC+ABS Lighting color: Colorful Voltage/power: 24V /15.6W Battery capacity: Built-in 2000mah Capacity: 400ml Working time: about 8-12 hours. Key operation: Left button: Quick click: adjust the color, seven colors in total. Press and hold the button to adjust the light to breathing light or always on. Middle button: Press and hold the button for more than 3 seconds to turn the machine on and off. With just one quick click, the machine can be adjusted for water or light. Right button: Quickly tap to adjust the brightness of the light, there are three brightness levels. Double-click to quickly adjust the water flow speed. Water Filling Method: Please remove the splash-proof lamp cover, add enough water near the mark line, but do not add water beyond the mark line. Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. included: 1 x Air Humidifier 1 x USB Data Cable