【Latest Improvements】 1. Improved internal structure to increase cooling efficiency & airflow. 2. Reduced noise; the improved material reduces the noise of the air cooler by 20db. 3. Improved water tank to solve the problems of water leakage during movement and when not in use. 4. The air cooler is small, compact, and easy to carry. 【Small Air Cooler】 Compact and small, it doesn't take up much space, making it small and portable, and easy to move, saving space! It can be used in various situations such as homes, offices, and bedrooms. You can easily use it by connecting the included USB cable to a USB power outlet. Perfect for single-person living! 【3-Stage Function】 3-stage switching is possible. There are three wind speed modes: low, medium, and high. You can switch the wind speed stages as you like, combined with the mist output. 【Quiet & Energy Saving】 Even in strong mode, the noise level is 35DB, so you can use it with peace of mind as it won't disturb sleep, reading, or work. As a simple desktop fan, it has low energy consumption, which is much cheaper than running a freon air conditioner on a hot summer day. Save energy and protect the environment. 【High Quality & Safety Certification】 The product uses high-quality ABS material, which is environmentally friendly and durable. In addition, the product has been inspected by Japanese electrical product standards. It is absolutely safe.