Large Rechargeable Battery Energy Saving: Built-in capacity 3600mah battery, when fully , the endurance can be up to 8 hours in low wind speeds. Simply connect the USB cable to the devices that support usb port. Besides, The portable air fan operates at a low energy consumption, much cheaper than running a Freon air conditioner. so you should not expect the same results as an air conditioner. Please Put it Beside You not over than 3ft-4ft. 1000ml larger Tanker Low water alert function :1000ml water container lets you store , our Air Cooler allows water to evaporate for a long-lasting. Personal Air Cooler Air Humidifier - It is not only an personal air cooler, but also an air humidifier. You can use the small evaporative air cooler all year round, cooling you in hot summer and humidifying the air in dry autumn and winter. A full tank of water can continuously keep spraying for 3-12 hours (depending on the speed). Adjustable Wind Speeds Automatic Timing - 3 wind speeds (high,Medium,low) can be adjusted, manual left-right to adjust blowing direction within 120 to meet your different needs. 4 Color Lights Low Noise - The misting fan has 4 soft colors. Place in dining or coffee table to create a romantic atmosphere! Desktop air cooler fan can work powerfully at a low noise level, let you enjoy a comfortable sleep all night with suitable temperature. size: 20x14x30cm Material: plastic colour: Green Package Contents: 1* Air Conditioner Fan Only the above package content, other products are not included.