Himalayan Salt is a natural ionizer, changing the air's electrical charge for improved air quality, sleep and mood. This diffuser is whisper-quiet, has continuous and intermittent mist settings plus flame and red, blue and green light settings. Also has a 1-, 3-, and 6-hour timer, all controlled by the remote. Just add essential oils to the water, plug it in and go. Includes AC adapter and remote. Remote uses 1 CR2032 battery (not included). 5.5" diam. x 4.5" h.