Pour-over devices are coffee brewing tools that allow for precise control over the brewing process. They typically consist of a cone-shaped filter holder, a filter, and a carafe or mug to catch the brewed coffee. The user manually pours hot water over coffee grounds in a controlled manner, which enhances the extraction of flavors. Common types of pour-over devices include the Chemex, Hario V60, and Kalita Wave. These devices are popular among coffee enthusiasts for their ability to produce a clean and flavorful cup of coffee, as they allow for adjustments in water temperature, pouring speed, and coffee grind size.