Product feature: Product type: aroma diffuser, portable, aroma therapy, easy to use, stylish design It can be placed in the office, bedroom, living room, car, beauty salon, or yoga studio. It helps refresh the air and aids in sleep. Breathing in the scent of your favorite essential oil in a quiet sleep environment will help you fall into a deep sleep like a baby. Note: There might be an error of 1-3 cm due to manual measurement, and slight color differences may occur as a result of varying lighting and monitor effects.