COLD MIST HUMIDIFIER: This cold mist humidifier is only 5.4*4.0*3.4 inches in size and has a capacity of 210ML. It is very suitable for use in bedrooms, living rooms, and offices. It can humidify and spray at any time and refuse to dry. ANTI-DRY BURNING PROTECTION: This humidifier will automatically shut down when the water level is low or if it continues to spray for 4 hours to prevent dry burning and eliminate potential safety hazards. CONVENIENT CHARGING: This mini humidifier is for charging only. It is equipped with a USB charging port and a charging cable. It is compatible with any device with a USB port, such as laptops, mobile power supplies, and power outlets. SILENT OPERATION & NIGHT LIGHT FUNCTION: The humidifier operates silently below 36dB, and it also has a night light function. The soft lighting and humid and comfortable air make you fall asleep easily in a warm and quiet environment. MULTI-PURPOSE: You can add your favorite essential oils to diffuse through the humidifier, so that the air is filled with a fresh smell, which can relax your mood. The cute avocado shape is also a perfect decoration.