Product Name: Car USB Ultrasonic Aroma Diffuser with Auto-Shut off When Water Level Is Low Model NO.: SH-EG-FD05 Purifying Technology: Cleaning Room Power Supply: USB Color: Multicolor Application: Car Usage: Home, Car Type: Air Ionizer Trademark: Customize Transport Package: Carton Origin: China (Mainland) Product Description Technology:high speed vibration of ultrasonic compounds the water and essential oil to anion for being absorbed by bodyMain MaterialPP (strong corrosion resistance)Size66 mm(diameter) x 116 mm(height)Weightabout 250gPower resourceElectrical (with USB cable and car adaptor)PowerDC12-24V→DC 5V 500mA→ diffuserRated electricity consumption2.5WVibration frequency: about 3MHzWorking time: 3 options (120/60/30 minutes).Duration time: 2 hours, when time is up or no water it will turn off automaticallyNumbers of LED: 3 lightsColor: manual control and change automaticallyRed→light red→white→light white→green→light green→blue→light blue → yellow → light yellow → purple → light purple → orange → low orangeApplicable Area: about 10-20 Square meterLength of the adapter line: about 60cm.Accessories: car adaptor, USB cable and user manualCertifications: CE, FCC, RoHSCreate instant relaxing aromatherapy by adding essential oilsSoothing color lights to chooseCan be used as a ultrasonic humidifierAdvanced ultrasonic diffusing technology with auto-shut off when water level is lowWhisper-quiet ultrasonic operationProvides moisture for dry cough, sinus irritation, dry skinHigh capacity water tank: 50mlEasy to clean