Bulb Humidifier: Product Description 1. Brand new and high quality 2. It can increase humidity of air, reducing dust and bacteria. 3. Bulb shape can rotate different degree that makes full humidification. 4. Drip several drops of natural essential oil into the water to produce natural for aroma so as to make the purified air wet, fragrant, refreshing and clean. 5. With Colorful LED Light. 6. Save energy, convenient to use, durable in use. 7. Compact and lightweight, this humidifier offers portability that is perfect for travel use. This cool humidifier can be multi angle displayed, vertically or tiltly because of the unique design of bottom. 7-color auto changing mode; This bulb humidifier creat+ cool mist which adds moisture to your indoor air to eliminate dryness. Perfect indoor use item for winter. Provide Fun and Beautiful Color for your Life, Good for Home/Office Desktop Decoration,and A perfect choice for people who love life and an ideal gift to the family or friends Smart Auto Shut-off: 400ML capacity to satisfy your need one day (12 hours), when all water is used up, the humidifier diffuser automatically shuts off to ensure safety, Convenient useful. Can observed if produce bacterial and change the pure water in time. Note:-No Battery needed. Just fill water with 1-2 drops of aroma perfume and plug in provided micro USB cable with your mobile charging adapter and start use.