[Efficient cooling] The design of the Portable Air Conditioner is inspired by the changes of the four seasons, creating a local temperature and moderate temperature to cope with the summer heat. [Excellent design] This Portable Air Conditioner is the latest model in 2021. Before designing the product, we analyze the problems of the previous products through big data, such as no cooling, water leakage, inconvenient use, need to add water frequently. [Quiet] Quiet, really quiet, not completely no noise, but the sound of the Portable Air Conditioner will make you feel comfortable, quieter than the library, it comes with the warm night light, you could have a nice dream with it.