USB Fast Charge It takes only 1 hour to recharge fully. You can grind about 10g pepper after each 5min charging. The white LED light indicates charging status: light up & blink slowly (charging); light always on (fully charged). 304 stainless steel Our electric salt and pepper grinders are made of the highest quality stainless steel and won't crack. It looks more modern and stylish. Adjustable Coarseness You can easily adjust the desired coarseness via rotating the knob at the top of the device. From extra-fine to coarse, 6-level coarseness satisfy your different seasoning demands for different delicacies. Automatic LED Light Equipped with a warm LED light at the bottom of the grinder, you can easily observe the landing amout of the spices on the foods. The LED light will automatically turn on when your press the button. Read more Read more