Product Details: 1. 400ml water tank, big capacity. 2. Portable for Gym, Yoga, Baby Room, Office, Bedroom. Envelop a space up to sq feet of your favorite scent with drops of essential oil will create fragrant and soothing environment. 3. 7 color LED light, programmable on/off cycles. 4. Auto shut off at lower water level. 5. Overheating protection 6. Top quality ABS/PP material 7. Different kinds of adaptors are optional in different countries.