1、Rapid cooling, release negative ions, ice curtain refrigeration, quickly into the cool state, sweep away the summer heat. 2、Silent working and strong wind, no disturb for your sleeping, no radiation silent technology, reliable and durable in use. 3、Pregnant women, the elderly and children can be used safely, no harm and help cool down in hot summer. 4、Effectively blocks the fine dust in the air, large particles, dust, microorganisms and so on, making the air fresher. 5、280ml Water tank design, can add ice water into the water tank, Come with USB cable of the package, easy and convenient for charging. Item Type: Water Cooling Fan Material: ABS Water Tank Capacity: 280ml Rated Power: 3W-10W Usage: 1. Place the air cooler on a platform, such as a table.This device is suitable for USB interface, adapter power should not be less than 5V, otherwise the machine can not be used. 2. Pull out strainer drawer and put in water curtain strainer and bottle.For best results, soak strainer in running cold water ahead of time. 3. For best results, soak strainer in running cold water ahead of time.If you want to cool it down a bit more, it's recommended to refrigerate the strainer and bottle before putting it in a drawer. 4. Open the cover of the water tank, fill the water tank with water or ice, until the water tank is full and cover the lid for use. 1 x Water Cooling Fan 1 x USB Cable 1 x Manual