Introduction:Excelvan aroma diffuser uses ultrasonic transducer， vibrating at a frequency of 2.4 million times per second. It can make the molecule of water and essential oils so tiny that it is easily absorbed by our body. Ultrasonic vapor diffusing keeps the original effect of essential oils instead of the traditional heating ways. Excelvan aroma diffuser��s environmental friendly materials and brief design can make eternal perfect. It can create an aromatic， relax and fresh living environment， make users free from the outward shackle， back to original nature， more close ro our inner joy， and start the fantastic aromatherapy journey.Features:1: Seven kinds of colorful changing LED light， each color has high and low types. Beautiful and romantic colors.2: Large 300ml water capacity that can continue use up to 8 hours each time， but pay attention to not over 8 hours each time. Besides， when you push the mist button， large mist will emit and makes you feel soft. 3: LED light diffuser relieves depression， stress， fatigue and headaches(Ease breathing and sleep better). Have four settings of time， 60/120/180 minutes or just push the ��on�� button for turning on manually.4: Different from traditional way of heating， combustion type hot fog， the cold fog technology does not harm the essential oil of any ingrdients， no secondary pollution and safer.Sepecification:Dimensions: Approx 168x148 mmWeight(excluding adaptor): Approx 550gPower: Input: AC100-240V 50/60 Hz Output: DC 24V 650MALength of cord: Approx 170 cmElectric comsumption: Appox 13WTime mode: 60/120/180/ON minutesTank capacity: 300mlLED light: 12 BulbsMaterial: Upper parts PP， lower base ABS?Method of mist production: Ultrasonic vibration at approx 2.4MHzAccessories: AC adapter and measuring jugPackage includes:1x Excelvan 300ml Aroma Diffuser Humidifier1x AC Adaptor1x Measuring Jug1x User ManualNote:Oil is NOT included in this package.Application:Beauty salon， SPA， Yoga， Bedroom， Living room， Conference room， Office， Reception center， Corridor， Pet room， Toilet， Baby room， Hotel， Hospital or any othert private or public circumstance.Before press the ��mist��button， please ensure that you have added water into the tank. That is to say， if there is no water but press the ��mist�� button， the diffuser will burn out. Therefore， please pay attention to that. Please make sure that the essential oil is water soluble and liquable.Clean regularly to avoid malfuction.Use tap water only， does not use mineral water， sparkling water， etc.