WHISPER QUIET AND TIMER: Adopted ultrasonic technology, makes you sleep better with 20dB ultra quiet and smooth mist. You can easily press the Mist button to choose a timer setting as your wishes (1 hour/3 hours/6 hours/steady ). 50-70ml/h mist output, 300ML capacity, perfect for 20-30m space and run up to 10 hours of continuous low power. ANION AIR PURIFIER: Built-in minus ion ceramic atomizing sheet produces the same minus ion of the nature to settle the impurities for you to breath fresher air. The aroma diffuser distributes mist at a 45 angle which can effectively diffuse the essential oil into the air and humidify more evenly. 7 COLORFUL LED LIGHTS:diffuser can be set to bright, soft glow or cycling through. 7 color changing lamps(white/blue/green/red/purple/yellow/cyan) for your choice. Achieve the perfect combination of light and aroma to create a relaxing resting environment. Powerful functionality makes it useful as aroma diffuser / humidifier / air purifier / night light. WATER-LESS AUTO SHUT-OFF:The oil diffuser will turn off automatically when there is no water, which is safer, no worry about damaging the device itself or creating a hazard to users. Innovative non-slip base and superior coverage.