Please Note: this is new style,just a line through it,not the whole light up !!ESSENTIAL OIL DIFFUSER- Cadrim kids humidifier could be used as a aromatherapy diffuser if add several drops of oil into the water, if without the oil, it is also a humidifier to keep room moisture, avoid dry skin 7 COLORS CHANGING - You can cycle it through all colors by power on-off button, or set it to one fixed color(7 colors for your option) by light on button, long press light-on button for 2 seconds to turn off led lights. AUTO-OFF - The 180ml essential oil diffuser lasts on for a long time(about 5-7 hours). Designed with waterless auto-off function, the humidifier will turn off automatically after 5s when water runs out. NO NOISE - Cadrim 3-in-1 humidifier adopted ultrasonic technology, extremely quiet when it is working, will not disturb you when you are studying, working or sleeping.make sure that the humidifier cover is on the right position EXCELLENT GIFT - The ultrasonic cool mist humidifier with LED Lights is shaped as a small cute whale, the lovely diffuser is a great gift for children kids wife and friends.