Air Cooler, Portable Personal Mini Air Conditioner, 3 Speed Mode Blue LED Evaporator, USB Rechargeable Cooling Fan-【Sprayer and 3 Speeds】: The air cooler has a spray function and 3 wind modes. Personal air conditioner cooler, fan, air humidifier, three-in-one multifunctional design to meet your different life needs. 【Portable & 3000mAh】: The portable air cooler has a wireless portable design, small size and can be easily carried anywhere. 30-50 hours working time with 3000mAh power bank, the best choice for camping (can be powered by mobile device charging). 【400ml Large Capacity】: The 400ml large water tank of the water cooler can be used for 4-5 hours when it is full. It can spray cold air continuously for hours at night to keep the body cool. 【Energy saving】: Fan coolers do not contain harmful refrigerants, nor do they use compressors like traditional power-hungry air conditioners. Save electricity bills and harm the environment. 【Ultra-quiet, high-efficiency and energy-saving】: This air-cooled fan can operate with low noise (less than 30dB), even at the maximum wind speed, the noise volume is less than 55dB, will not disturb your life, work and sleep, bringing you the most comfortable experience. It's your best choice when you want to cool down in the office, room, home and sports.