USB Fast Charge & Use 200 times:This rechargeable electric salt and pepper grinders are built in 1200mah Lithium Battery, letting you charge anywhere without battery replacement. Ultra-Long using time,1.5-2 hour (about 200 Using Times)after one time charge.You can charge it with power bank, AC adapter, laptop, etc Gravity Operation & Easy to Use: Automatic peper and salt grinder is gravity activated. One-handed operation, You only need to press the power button and turn upside down.You will get fresh salt or pepper without twisting it manually.Owning a simple & easy-to-use peppercorn grinder, not only improve your cooking efficiency in the kitchen, but also your fimilly's elderly and children can use them to participate in your cooking fun Adjustable Grinding Coarseness & Fine:Salt & pepper mill supports different grinding coarseness settings. Just turn the knob on the top of them to set the desired coarseness. Rotate clockwise into fine particles and rotate counterclockwise to grind into coarse particles.Simple and fashion design, suitable for all dinner tables and kitchen countertops High Quality & Large Capacity:This recharging electric salt and pepper grinder set is consist of a high quality stainless steel case, a transparent thickened plastic body and an anti-corrosion ceramic blade. The fill capacity is 200 ml, which reduces the number of filled fills