Hand Blown Glass. Four programmable runtimes: 30min., 60min., 2hrs, 3hrs. Auto shut off when the water chamber is out of water or the time is up. Lights up in 7 popular colors. This Artesian Ultrasonic Diffuser uses ultrasonic waves to instantly vaporize water and essential oil to produce a cool, dry fragrant mist.
 
Essential oils sold seperately.
 
Product Dimensions: 3.625”W x 5.75”H.