The Ultimate Aromatherapy Diffuser & Essential Oil Set includes a round-shaped diffuser with a 400ml capacity that uses state-of-the-art ultrasonic technology to distribute essential oils throughout your space. It comes with 10 essential oils, including lavender, and has a coverage area of 800 square feet. The diffuser has a wood grain design and LED light source, making it a stylish and functional addition to your home. With a runtime of up to 6 hours and auto shutoff feature, this BPA-free plastic diffuser is easy to use and maintain, providing a relaxing and fragrant atmosphere for your space.