One-Handed Automatic Pepper Mill: With our electric salt and pepper mills, there is no need to grind by hand. Press and hold the button to start the electric pepper mill, release the button to stop the electric pepper mill. The lid is transparent for easy viewing and filling of spices. Low Energy Consumption and High Efficiency Electric Pepper Mill: The pepper mill is powered by 4 AAA alkaline batteries (not included). The salt mill reservoir can hold up to 65 g of spices and does not require frequent additions. The electric salt and pepper mills are equipped with an LED light that lights up during grinding, allowing you to observe the seasoning in a backlit environment. Electric Pepper Mill with 5 Levels of Coarseness Adjustment: The thickness of the spices is adjusted by rotating the rotary knob at the base of the electric pepper mill. Turn clockwise to obtain a fine grain and counterclockwise to obtain a coarse grind. The salt and pepper mill gives your dishes a refined flavor.