Features： 1、Automatic Operation: This coffee grinder automatically stops grinding when finished, with intelligent resistance sensing to prevent overheating and auto power off for peace of mind, even if you step away. 2、Precise Ceramic Grinding Core: The electric coffee mill features a precise spiral threaded ceramic grinding core that minimizes heat generation during grinding compared to metal cores, reducing flavor loss. 3、Adjustable: Suitable for various coffee utensils, adjustable for coarseness, the machine enables precise control over the grind size for a unique flavor with every cup. 4、Low Noise Pure Copper Motor: Equipped with a powerful and stable pure copper motor that rotates at a constant speed for stable grinding, increasing efficiency utilization by 30%. 5、Stainless Steel Blade: The stainless steel blades quickly chop ingredients with rapid rotation, for pairing with coffee beans and versatile enough for spices, nuts, and more. Specification： Item Type: Electric Coffee Grinder Material: ABS Battery Capacity: 1000mAh (Shipped with Built in Battery) Battery Type: Lithium Battery Grinding Compartment Capacity: 90ml Powder Compartment Capacity: 170ml Package List： 1 x Instruction Manual 1 x Brush 1 x Electric Coffee Grinder 1 x USB Charging Cable