This U-MATE brand light yellow Wood Grain Aroma Diffuser has a 300 ml capacity water tank and uses the state of ultrasonic wave cool mist art diffusion technology to atomize essential oils for wellness. It includes 7 colors light ambient mode and 4 timer settings with convenient auto shut off feature for low water levels. This diffuser is made of BPA free plastic with a beautiful printed wood grain design. It is perfect for home, office, study, yoga and spa. It is not made of “hardwood”, but of very natural and beautiful wood grain plastic. SPECIFICATIONS: Color: Dark brown wood grain Product size: 6.6X6.6X5.8 in(168*168*148 mm) Ultrasonic rate: 2.4 MHz Water tank capacity: 300 ml Mist amount: 20-30 ml/h Time mode: 1H/3H/6H/ON N.W.about: 400g Material: PP + ABS Power supply: Input AC 100-240V / Output DC 24V 0.5A Package Included: 1x Aroma Diffuser、1x Power Adapter、1x User Manual NOTE: 1. Use natural essential oils. Do not use chemical essential oils which are not good for health. 2. Please make sure that you have added water into the tank. Do not add water over the MAX line shown inside the water tank.