Are you still worrying about your high electronic bill after forgetting to turn off the desktop fan? Are you still anxious about leaking water to damage your electronic devices while using the air conditioner fan? Are you still worried about cannot take the Portable Air Conditioner while on a trip? Come to choose this Trustech portable Air cooler. This air conditioner fan with 3 in 1 function, 12H timer, 500ML Large capacity water tank, portable design to bring you fresh and cool air during this summer. 12H Timing and Energy Saving - with a 12H timer and 5W lower power of working voltage, you can fully enjoy your working or sleeping time and no need to worry about the high electronic bill anymore. 500ML Large capacity water tank - This evaporative air cooler with 500ML Large capacity water tank and leakproof function, stay away from leaking water damage, which is your ideal for this summer. Multiple power supply - W/4xAAA batteries and USB supply, you can easily charge the personal mini Evaporative cooler anywhere, even charging it through the computer while you working outside. No afraid of power failure anymore. 3 in 1 portable mini air cooler - This personal air conditioner fan can not only work as a normal desk fan but also as a mini air condition and humidifier. Choose your comfortable mode to enjoy this summer. 2 Speeds and adjustable direction - this air conditioner fan with 2 speeds and adjustable air outlet, you can customize the most suitable mode to enjoy your fresh and cool air.