Description: The cover of oil diffuser is filled with natural salt crystals. When the light is on, the salt stone is heated and can effectively removing peculiar smell in the air and purifying the air. The salt lamp diffuser gives your home and office a special atmosphere. Features: [Crystal Salt Stone]The salt stone lamp is an elegant aromatherapy diffuser that creates aromatic and tranquility. [Colorful Light]This personal humidifier with warm light, 7 color-changing lights, and 7 types of single-color light can create a warm and romantic environment. [Useful]The naturally ionized air also helps you sleep better at night, allowing you to wake refreshed. [Great Gift]A perfect gift for Christmas, holidays, birthdays, graduations, thank-yous, and special occasions. [Easy to Use]One button to adjust the light color, turn on/off. Simply plug into a USB port to use. Specifications: Color: White; Black (Optional) Material: ABS, PP, Electronic Components Style: Casual Input: DC5V Occasion: