Looking For A Simple Way To Smell Better In Your Room? The Urpower Ultrasonic Aroma Essential Oil Diffuser Is Elegant And Easy To Use. Just Add 100Ml Of Water And A Few Drops Of Your Favorite Essential Oil. Advanced Ultrasonic Diffusion Technology Quietly Releases A Soothing Fragrant Mist Up To 6 Hours. Automatic Shut Off Safety System When Waterless Protects The Product From Being Burned Out. Keep Essential Oil 100% Natural Without Burning Or Heating And Automatic Shut Off Safely. The Urpower Ultrasonic Aroma Humidifier Does Double Duty To Make Your Home Smell Better For Up To 6 Hours. This Handy Unit Can Diffuse Your Favorite Scented Oils Without Heat, So Their Holistic Properties Stay Intact. Features: No Filters Required Whisper-Quiet Operation Auto Shutoff For Safety Visually Appealing,Modern Japanese Design Works With Ordinary Tap Water, Plus 2 To 3 Drops Of Essential Oil Specifications: Size:3.1"X5.5" Material: Upper Parts Pp Input Power: Ac100-240V 50/60Hz Advanced Ultrasonic Technology: 2.4Mhz Length Of The Power Supply Cable: About 51.2 Inch Package Includes: 1 X Oil Diffuser 1 X Charger Adaptor 1 X Manual