Donald duck cute fart fun element design. Using sonic vibration technology, the essential oil fragrance can be evenly diffused and humidified to adjust the indoor dry environment. Warm lighting, relaxing and not dazzling when sleeping at night. Low-decibel operation to maintain healthy sleep quality. Automatic detection of low water level, automatic power off doubles the peace of mind. Two-stage brightness adjustment, can be used as space decoration and night light. Timing operation design to keep the ambient temperature and the amount of essential oils in a comfortable range. It can be powered by BSMI-certified USB charger, mobile power supply or computer USB port, and the applicable scenarios are more extensive and unlimited.