Hosley's ULTRASONIC Diffuser. 100ml Auto Shut-Off, 7 Color LED Lights. Use with Hosley Essential Oils. Ideal Gift for Weddings, Special Occasions, Spa, Office, Dorm Reiki, Meditation Settings O7 PRODUCT: Hosley's 100ml ULTRASONIC DIFFUSER USES: They're best in your home, bedroom, bathroom, office, spa, salon, or professional setting. Used with our Hosley's Diffuser oils fragrances up to 250 square feet. Also works as a small humidifier. BENEFITS: Our diffuser is quiet, does not use heat, has an automatic shut. Plus the 6 color changing LED light, recommend use for 4 hours at a time, hours. MEASUREMENTS/MATERIAL: Made of plastic. Measures 6.62" x 6.62" x 7.00" HOSLEY BRAND PRODUCTS: Hosley brand products are made from quality raw materials with minimal wastage at every step of production. With the goal of achieving a neutral carbon footprint, please recycle and help leave Mother Earth better off for future generations.