Powerful and uniquely refined, the doTERRA Volo diffusers are the perfect option for you to enjoy the aromatic benefits of CPTG® essential oils. In onyx and marble colors, doTERRA Volo Onyx and doTERRA Volo Marble complement the decoration of your home, office or any other environment. They feature a handcrafted polyresin stone top with a custom diamond cut and feature optional light settings: unlit, warm, and bright amber. These diffusers have mist dispersion with multiple time settings: 1, 3 or 6 hours, or up to 14 hours continuous, which allows you to customize your experience with CPTG® essential oils. The absence of noise makes them extremely comfortable to be used anywhere, especially at night, at bedtime, at work or during meditation, yoga or any other activities that require silence and concentration. The Volo Marble and Onyx diffusers are approved by Inmetro (National Institute of Metrology, Quality and Technology) and, for the user's safety, especially for children, they have automatic safety shut-off and the AC adapter with certificate included. *See diffuser manual for precautions and instructions for use. USE ONLY ON FLAT SURFACES