ESUMIC Portable Mini Air Conditioner Travel Handheld USB Rechargeable Cooling Fan for Summer Rose Rechargeable portable mini air conditioner. Cooling effect is even better with freezing the sponge after water absorption. Save money with built-in rechargeable battery. Great for household, outdoor, office, gifts etc. Unique dual-mode of fan and air-conditioning refrigeration, which can effectively cool down3-5.