Abyln 500ml Aromatherapy Essential Oil Diffuser Ultrasonic Cool Mist Air Humidifier with Changing LED Color, Timer Setting and Waterless Auto Shut-off Timer Setting - Can choose auto-close after 60min, 120min, 180min or keep working all the time. For more convient and more safe to use. Big Capacity up to 500ml - Can last 8 hours in high mist mode and 17 hours in low mist mode.Turns off automatically when water is empty. Decoration and Relieve Stress - 14 Changing LED Color to choose, as a colorful night light to decorate your room. And add your favorite essential oil to relieve stress and adjust mood. Perfect Gift - High quality made and perfect function. Make it to be a perfect gift for family and friends who love aromatherapy or can benefit from aromatherapy healing. Portable for gym, yoga, baby room, office, or bedroom. Risk-free Money Back Guarantee - If you are not completely satisfied, simply contact us and we will give you a full refund, no questions asked!