Novel shape:RIORAND The newest design in the autumn of 2017,Water droplets Style and 7 colors Soothing LED Lights with Wood Grain Finish Time Setting and Mist Control:Comes with 5 timer settings(Continuous modes/1H/ 3H/ 6H/OFF) and strong or weak mist options Super Quiet: With the Adopted ultrasonic technology, this diffuser is extremely quiet while working and add oil,Coupled with essential oils, will promote sleep 500ML Large Volume and Waterless Auto-Off Function: The diffuser can hold up to 500ml of water, works well in a large space. And when the water stored is off, the diffuser will automatically turn off in case you do not notice it, reliable and safe. Warranty period 1years.Made of Fireproof and environmentally friendly material and quality guarantee is provided.Through CE, FCC, ROHS certification