1、With 250ml water tank, 35ml/hour spray volume, one key switch between intermittent atomization and continuous atomization. Continuous spray mode can quickly improve dry environment, intermittent spray mode is suitable for sleeping in dry environment 2、Has automatic shutdown protection, automatic power off protection for 3 hours of continuous atomization, and 6 hour automatic power off protection for intermittent atomization. Ultrasonic technology supports low working noise 3、Compatible with any device with a USB port, connect the humidifier to a PC, mobile power, power socket, using a USB cable and press the button 4、This mini USB humidifier is very light and can be carried with you. Lovely shapes and bright colors will bring happiness to your room, desk, office, and car 5、Effectively improve the indoor air condition. The humidifiercan soften and moisturize dry skin in winter. Cooler in summer or hot weather, suitable for gifts to family and friends 1 x Portable Humidifier1 x User Manual1 x Charging Cable Item Type:Portable HumidifierRated Voltage: DC5V-1ARated Power: 1.5-2WSpray Efficiency: 35ml/hWater Capacity: 250mlSpray Time: 3-6 Hours