A. Enjoy three functions: (1) Tower fan - No need to add water. (2) Cooling fan - Add ice crystals. (3) Purifying and humidifying - Add water. Tower fan - Without water - Gentle breeze. Air - cooling fan - With ice crystals - Cold wind. Humidifier - With water - Moist air. B. The three - in - one function combines blowing, cooling and humidifying. Besides the blowing function of a regular fan, it can also filter dust, humidify the air and blow out cool air. Enjoy three functions. C. If the product received does not power on, it is recommended to use a 5V 2A plug. D. This product itself is a [missing content here] and not an air - conditioner. Compared with ordinary fans, it has two upgraded functions and can be filled with water or ice. E. You can adjust the wind power to 1 - 6 levels with one key to meet your needs. F. Name: Desktop air - cooling fan Water tank capacity: 300 ml Power supply: USB power supply Rated voltage: 5V 2A Color: Black + White Material: ABS Size: 145.5×240 mm Package contents: 1 desktop air - cooling fan 1 USB data cable 1 English instruction manual Only the above items are included in the package, and no other products are included. G. Note: Light and different monitors may cause slight differences between the color of the item in [missing content here] and the actual product. A measurement error of ±1 - 3 cm is allowed.