Unique DesignElegant in design and charming in color. The 3D effect is made of glass cover and unique techniques. Compact and portable, the essential oil diffuser's cover can be easily removed, easy to fill with water and a few drops of essential oil, helping you benefit from aromatherapy. As a GiftEssential oil diffusers can make your room romantic and warm.You can change 7 colors. Wonderful gift for family and friends. Whisper Quiet Ultrasonic TechnologyAromatherapy essential oil diffuser adopted advanced ultrasonic technology. It is extremely quiet without annoying noise that won't disturb you when you sleep or at work. Timer Setting and Auto-Off Safety Design4 Timer Setting Mode: 3H 2H 1H 0.5H. You can set the time according to your different needs. Aromatherapy essential oil diffuser will automatically stop working and keep your unit from being damaged as water has been used up. 100% Risk Free PurchaseOur diffusers have a one-year warranty and a 30-day refund guarantee as well as lifetime after-sales service. If you are not 100% satisfied with the performance of our products, we promise to provide you with replacement or full refund.