Features of Thehomeuse Mini Air Cooler : 1. Safe design. The portable ac unit will turn off automaticly after 6hrs. 2. Strong wind. The highest level wind can cover a big space and creat a cooling zone for you. 3. Quiet. The evaporative cooler is quiet during runing. You can use it during sleeping without disturbing. 4. Low electric consumption. The evaporative cooler has rated power 10W, you can enjoy a cooler summer with low electricity bill. 5. 730ml water tank. Large water tank allows the evaporative cooler cooling for a long time. You don't need to add water every 30mins. 6. LED lights. The LED lights has 7 color, they are soft and and wonderful for your night. You can also turn off the lights. 7. 2000mah Battery. The rechargeable design ensure you can take the mini air conditioner fan anywhere you want. It's a great choice for summer camping. 8. Type C port. The Type C charging port allows higher electric efficiency. The charging can be faster. Specifications: Power Supply: USB Rechargable Water Tank Capacity: 730ml Winds Speed: 3 modes Humidification: 3 Mist Levels Product size: 9*5.5*6.5inch Product Weight: 2lb Package List: 1 x Personal Air Conditioner Fan 1 x USB Cable 1 x User Manual Note: 1. Please kindly note that this is a personal air conditioner fan, it won't able to cool a whole room. Keep it near by your side is the correct using way. 2. If the water tank is short of water, pls turn off the mist function or add water in case break the mini ac unit. 3. We suggest clean the water tank once a week to clear scale.