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 to our inner joy、 and start the fantastic aromatherapy journey.Features:Seven Kinds of Colorful Changing LED Light、 each color has High and Low types. Beautiful and Romantic Colors.Large 500ml water capacity that can continue use up to 10 Hours each time. Besides、 large mist is put out and feel soft.LED Light Diffuser Relieves depression、 stress、 fatigue & headaches . (Eases breathing & sleep better). Have four settings of time、 60/120/180minutes or just choose"ON" for turnning off manually.Different form traditional way of heating、 combustion type hot fog、 the Cold Fog Technology does not harm the essential oil of any ingredients、 no secondary pollution and Safer.Specification:Material: Advanced PP materialMost advanced ultrasonice technology:2.4MHZLED light: 7 Color Changing lampsAdjustable Mist Intensity: high-lowMist output: 50-70ml/HTiming Set: You can set 60/120/180 minutes to let the device to turn off automatically or just choose "on" for turning off manually0.3 NM、 Absorbable、 No sweatNoise Level: <35 dB(A)Output: DC 24V、 13W・650MAProduct size: Approx ・6.6*4.8(H)InchesPackage: Common packageKeep essential oil 100% natural without burning or heating and automatic shut off safely Package includes:1 x Excelvan 500ml Aroma Diffuser Humidifier1 x AC Adaptor1 x Measuring Cup1 x 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 other private / public circumstanceBefore press the " MIST" button、 please ensure that you have added water into sink. That is to say、 if there is no water but press the "MIST"button、 the diffuser will be burned out. Therefore、 please pay attention to that.Please make sure the essential oil is water soluble and liquable.Clean regularly to avoid malfunctionUse tap water only、 does not use mineral water、 sparkling water etc.