【USB Charging Design】- The electric grinder has a built-in 500mAh rechargeable lithium battery, no extra battery is needed, and a type-c data cable is used for fast charging. It only takes one hour for a full charge. Charge for 5 minutes, you can grind 10g pepper, with type-c cable. 【6 Adjustable Thickness】- Just twist the knob on the top of each rechargeable pepper grinder to adjust your desired thickness and easily control the texture of spice grinding from coarse to ultra-fine in 6 levels. It is very suitable for grinding sea salt, black pepper, white pepper and other spices. 【Warm Color LED Lights】- no longer looks like a light cheap white or low light blue light, our electric salt and pepper mills are equipped with warm color LED lights, bright and soft, adding a warm and romantic atmosphere to your family or loved ones. The light will automatically turn on during this time. This helps prevent over-seasoning of food. 【Easy to Use】- One button control, just press the button for