1. Unique Design Ultrasonic Aromatherapy Diffuser, 7 Changeable colorful LED, 300ml water tank, Ultrasonic mist maker, Simple operation, Fine mist. The aroma diffuser is made of environment friendly PPABS material with natural, BPA . 2. 7 Changing LED LightThe aromatherapy machine features a 7color LED ambient light and two light modes. It has a quiet system, adopted ultrasonic technology, this aromatherapy diffuser will not disturb your study, work or sleep. 3. Main Function The aroma diffuser uses ultrasonic waves to instantly vaporize water and essential oil in the tank, to produce a cool, moist fragrant mist. It can relieve the pressure, provide care, clean the air, help with aromatherapy calm your mind, and moisturize nourish. 4. Threespeed timing functionThis aroma diffuser has three timing functions (2H, 4H, 8H) and continuous spray function. Press the fourth time for continuous spray, press the long MIST button to adjust the fog quantity. Meeting your every need is essential for every family and escorting your .