Enjoy fresh coffee every day: Slow grinds produce less heat than blade grinders. Not only is the grinding more uniform, but the oil, aroma and flavor of the coffee beans are maximized. It was worth the wait. A slow grind will not overheat the coffee grounds. Multiple Roughness Adjustments: Built-in adjustable grind selector, the electric coffee grinder can be adjusted to any desired size simply by turning the grind knob. Precisely control the roughness of drip, cold brew, French press and espresso. Rechargeable and Powerful: The built-in 1250mAh Li-Ion battery charges via USB and provides up to 60 minutes of runtime from a 5-hour full charge. Electric cone burr grinders are equipped with durable DC motors and reducers. One key switch, automaticshutdown. Let you no longer consume physical strength, no longer worry about wrist injury. Lightweight and Portable: Convenient for travel. The wireless and USB rechargeable grinder grinds easily, so you can get perfectly ground coffee beans in minutes. Perfect for camping, hiking, traveling and business trips. Removable and easy to clean: Grind about 1 oz / 30 g of coffee beans each time. Does not stain and is easy to clean. Removable upper burr, hopper and chamber can be easily removed for easy cleaning. The coffee grounds container with ceramic burrs andhopper can be washed with water and will not rust.