Check the listing for details. NIB Chillwell DELUXE PORTABLE Air Cooler Powers On USB Cable Included. Color: White, Condition: New, Made in China. Listed at 29.00 USD. The NIB Chillwell DELUXE PORTABLE Air Cooler A24 is a sleek and efficient portable air conditioner that operates on a USB power source, making it convenient for use in any room. With a cooling method of direct air and a low current rating, this unit is perfect for cooling small spaces up to 100 sq ft. The white color and plastic material make it a stylish addition to any home, while the push button control style and ventless exhaust configuration ensure easy operation. The energy-efficient design, with an EER of 10.1-11 and Energy Star rating of A+++, makes it an environmentally-friendly choice for cooling. Ideal for use on a desk or tabletop, this portable air conditioner from Chillwell is a top choice for staying cool on the go.