USB Rechargeable Design: This electric salt and pepper grinder set has a builtin rechargeable battery and a USB charging cable, providing reliable power with easy recharging when needed. 6 Adjustable Coarseness Levels: The grind size can be set from fine to coarse using an adjustment knob, enabling precise seasoning for steaks, salads, or soups and ensuring consistent flavor and texture. Automatic OneHand Operation: Press the button to grind, with no manual twisting required, allowing convenient onehanded use while cooking or serving. Durable & Practical Design: Transparent windows let you monitor spice levels at a glance, and wide openings make refilling salt, pepper, or spices mess for daily kitchen use. Practical Use Scenarios: Cooking and grilling: grind pepper to the desired coarseness directly over steaks or roasts for even seasoning. Salads, soups, and pasta dishes: switch between fine and medium grinds to control flavor distribution. Table service: easy onehand operation at the dining table for quick, mess seasoning by guests or family members.