All-Natural Air Freshener-Freshen the air in your home with the USB-powered aromatherapy oil diffuser.Just add 90ml of water and 3-5 drops of your favorite essential oils for powerful aroma coverage that lasts up to 6-8 hoursSize: 11.8x11.6cm. Whisper-Quiet Operation and Auto Safety Shut-off-Gentle,whisper-like ultrasonic operation is perfect for use in a nursery, office, spa, yoga studio, or in any room of your home. this ultrasonic aroma diffuser will automatically turn off when water tank is empty or low to prevent overheating and safety concerns. BPA Free and Soothing Mood Light-Eco-Friendly and Made of 100% safe materials. mini essential oil diffuser with 7 Optional color-changing LED lighting creates a relaxing ambiance and soft night glow while lifting your mood and relieving stress. Compact, Cut-out Design-Oil diffuser with aroma coverage up to 269 square feet,the elegant cut-out, sleek and compact design which is enhanced with soft lighting and fits easily on any desk or nightstand and even travels well in your carryon luggage. Ideal Christmas Gift with 2 Mist Modes-2 mister way (continuous and intermittent). With ultrasonic cooling mist atomizer, the humidifier presents finer and more gentle mist. It is good choice to use this lovely diffuser as Christmas gifts to your friends and families, and lovers at home or in the office for a more enjoyable living atmosphere.