Product Describe:This Aroma diffuser can be used to set the ambiance of a room, freshen the air, and help you to relax or to add humidity to the air for your health. Large 500ml water capacity that can continue use up to 10 Hours each time. Besides, large mist is put out and feel soft. 7 Colorful Changing LED Light Diffuser Relieves depression, stress, fatigue & headaches . (Eases breathing & sleep better). Just choose"ON/OFF" for turning off manually.