The Stone Diffuser scents your home and looks beautiful while doing it. With a cover crafted out of matte ceramic, it doubles as a piece of decor—making it perfect for bedsides, countertops, and shelves. How To Use Fill up the water reservoir to the fill line. Add 20-25 drops of 100% pure essential oils, fragrance oils or your favorite aromatic oils then put the plastic cap and ceramic cover back on, and select your time setting. Materials: Porcelain cover. BPA-free plastic water reservoir. Technology: Ultrasonic: 2.5 vibrations/second. Comes with a five-foot-long power cord that must be plugged in for use. Voltage: 120-240 v. Run time: Two settings: consistent 4-hour and intermittent 8-hour. Specs: Width: 3.4 in. Height: 7 in. Weight: 1.1 lbs. Misting output: Consistent: 1 fl. oz./hour. Intermittent: 0.40 fl. oz./hour. Diffusing capacity: 500 sq.-ft. Safety: Automatically turns off when time is up or water runs out. Power cord: Compatible with North American outlets. Orders outs