You can use it straight out of the box, just slide the batteries in, and you're good to go. Thanks to the automatic LED lights, these motorized pepper crushers will light up when you grind your spices. Simply twist the coarseness knob to adjust cut size to your preference, and the ceramic burr will provide a precise uniform outcome according to your setting. Locks in freshness, and prevents your herbs and spices from going stale. On top of that, our grinders have an elegant, modern and sleek design that will impress your guests and adorn your countertop. Use the accompanying cleaning and dust brush to clean off residual black peppercorns or Himalayan and sea salt. DO NOT submerge the in water as it will damage the crusher mechanism. Not dishwasher safe.