This is the new aromatherapy aroma diffuser ultrasonic humidifier air purifier. With the compact portable design, nice shape and unique style. This ultrasonic aromatherapy diffuser has 1.7 Million ultrasonic vibrations per second, which keeps all natural ingredients and essential oil be 100% utilized and absorbed by the body and skin through aromatherapy. With the concept of health and exquisite design, this diffuser is the perfect gift to family and friends. Features: small in size, easy cleaning and being portable. Two mode of mist and eight mode light available automatic stop without water, safe and reliable. Led night light. Original import transducer, the non-furring, corrosion resistance. Whisper-Quiet ultrasonic operation. External transformer, low energy consumption, harmless to human body. Easy to clean. Delicate chestnut shape specs: working mode: 2 grades mist time: 2-7 hours input volt: 100-240v output volt: ac 24v power: 12w size: 5.125" X 5.125" X 3.750" (130Mm x 130mm x 95mm) material: abs & pp net weight: 11.3oz (320G) adapt area: 65-90 square feet (20-30 square meters) auto off: yes instructions: turn the cover and open the diffuser. Lift the water tank 5oz or less of water (use measuring cup).add 3-5 drops essential oil. Replace cap, cover, and plug in dc adapter into unit. Plug dc adapter into a power source. Includes: one (1) aroma diffuser one (1) measuring cup one (1) us power adapter one (1) user manual.