Better life， better way!Features:100% Brand new and high quality!Keep air clean and fresh， remove dust and smokeProduce active oxygen， clear airEliminate peculiar smells; reduce radiationImprove pulmonary function; prevent air conditioner diseaseBoosting up immunity active oxygen is easy to combined with air to improve that human body absorb oxygenDelicate style to be integrated with autos， moreover， it is suitable for the office as well as home environment， which shows your special taste. Specifications:Condition: brand newQuantity: 1pcVoltage: DC 5VPower: <3WPort: USBNegative ion density: >1.0*106pcs/cm3Base size: approx 8.8*9.1cmColor: silverPacking Content:1 x Air Purifier 1 x USB cableEnjoy the best day of your life.