1[USB Rechargeable] Electric pepper grinder with built in 500mAh battery with advanced charging technology, only one USB charging cable is needed, no need to replace the battery.2[Adjustable Coarseness] Coarseness can be adjusted by rotating the bottom of the electric salt and pepper grinder, clockwise for fine particles and counterclockwise for coarse particles.3[Easy To Operate] Just press the on off button to control the whole grinder easily. It can free your hands. Release the button to stop working immediately and control the dosage easily.4[Innovative Design] This automatic salt and pepper mill is designed with a clear acrylic lid for easy identification of spices. With LED light, you can easily see the amount of spices put into the food.5[Multi Application] Automatic mill can be used for pepper, salt and spices. Can be used as a seasoner for pepper, salt, herbs and spice mixes. Suitable for kitchen, outdoor grill and restaurant. 6[Safe And Durable] The spice grinder housing is made of premium ABS material for safe contact with food. No danger of glass breakage, sturdy and durable, with long service life.