The upgraded electric pepper grinder is different from other or usb rechargeable grinders, you can charge the grinder by putting it into the charge base after use. One charge supports 200-300 uses and each charge can use for about 2-3 months. Automatic salt and pepper grinder set doesn't need to twist like manual grinders. Press and hold the button, you will salt pepper or other spice powders. Free your hands. Turn the electric pepper grinder knob at the bottom of the device to adjust the coarseness you like. It can ground into fine particles by rotating clockwise, and coarse particles by rotating counterclockwise, suitable for sea salt, black pepper, gold pepper, white pepper and other solid spices. Automatic salt pepper grinders with LED light for brighter and clearer, light will turn on whenever the salt pepper grinder set is working, so it helps prevent food from being over-seasoned. Colour:Black Material:ABS Package Contents: 2 x Electric Pepper Mill grinder 1 x base 1 x Usb Cable 1 x Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.