Compact USB humidifier with a 130*78*78 mm footprint, ideal for car, office, or desk use, delivering a fine cool mist to refresh your space Quiet ultrasonic cool mist technology: operates without heating elements, producing visible vapor to moisturize dry air while remaining safe around children and pets 300 ml water tank for longlasting moisture; wide opening design simplifies refilling and cleaning for hassle daily operation Auto shutoff after 4 hours of continuous use or 8 hours of intermittent spraying; adjustable mood lighting to create your preferred ambiance and help prevent overuse Practical use scenarios: in the car during commutes, on a desk or in a small office, or in a bedroom or living area to maintain comfortable humidity USB powered and portable design for flexible placement and easy power options in various environments