The 150 ml App-Driven Smart Ultrasonic Diffuser fills your space with the scents you love. This diffuser is connected to the Trapp Smart app for easy customization—including adjusting colors, controlling diffuser strength, and setting timers or schedules. To use, download the Trapp App from the Apple or Google app store, add water and the essential oil of your choice, turn it on and let the cool mist refresh your mind and body. Add more drops to increase fragrance intensity