This Electric Coffee Grinder Has A Ceramic Core That Is Not Susceptible To Heat, And The Core Part Can Be Washed To Avoid Odor. A knob Is Used To Control The Thickness Of The Beans, And The Thickness Of The Ground Beans Can Be Adjusted As Needed. The Grinding Machine Is Small In Size, Easy To Store, And Adopts Tape-C Charging Port, Easy To Charge, Suitable For Travel. The Body Of The Coffee Grinder Can Be Detachable, And The Bean Bin And Powder Bin Can Be Separated And Cleaned To Keep Clean. Blue Light Flashing: Working Blinking Red: The Power Supply Is Insufficient Red Light: Charge Blue Light: Fully Charged LED Charging Prompt: Blue Light Works, Red Light Flashes To Remind Charging Automatic Stop: The Barn Will Automatically Stop Working When It Runs Out Of Beans Product Name: Electric Coffee Grinder Material: Plastic ABS, Copper Motor, PC Color: Black, White Product Size :19*7.5CM Weight :0.529kg (Including Color Box) Package Size :21*11*11CM Rated Voltage/Power :3.7V/13W Battery Size :3.7V, 1200mAh Ground Weight :25g Coffee Beans Power Supply Mode: TYPE-C Powder Storage Capacity :120ML 1* Coffee Grinder (Host) 1* USB TYPE-C Charging Cable Light shooting 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.