This mini humidifier with USB interface is great for car use especially during a long journey. It can give off fresh mist to moisten and purify the dry air around you, refreshing your car journey and helping you to stay a sharp mind. Features: Giving off fresh mist to moisten, purify and refresh the air around you. With two USB interface to charge your devices, charging and humidifying simultaneously, enriching your car journey. Lightweight mini design, very easy to use, powered by DC 12V vehicle power supply. You can drop the aroma oil or essential oil(not include) into water to make the air fresher and fragrant. Automatic power off: Automatic shut-off after 2-hour use prevents overheating and get rid of safety concerns. Perfectly applicable in the car, enjoy the fresh air on the road! Specifications: Material: ABS + PP + electronic components Color: White, blue, purple, black (Optional) Input Voltage: DC 12V Output Voltage: DC 12V Working Power: 1.5-3.5W USB Output: DC 5V 2.1A Water Tank Capacity: 50ml Spray Amount: 20-30ml/h Working time: Shut-off after 2 hour Weight: 91g / 3.21oz Size: 6.8 * 7.0 * 21cm / 2.68 * 2.75 * 8.27in Package Size: 22 * 9 * 7cm / 8.7 * 3.54 * 2.75in Package Weight: 150g / 5.29oz Package List: 1 * Humidifier 1 * User Manual(English) #Humidifier #Refresher #MistMaker #Purifier