Intelligent Star Light Formaldehyde Removal Smoke Detection Office Desktop Indoor Air Purifier $ 15.33 Product information: Material: ABS Operating voltage: 5V Work current: 260mAh(MAX) Applicable area: 10m Negative ion concentration: 30 million Size: 66*66.3 * 170.5mm Power specification: USB Packing list: Air Purifier1 Power cord 1 Instruction manual *1 Product Image: