Enjoy Fresh Coffee Everyday:Less heat generated during slow grinding than a blade grinder.Not only grinds more evenly, but also retains the oil, aroma and taste of coffee beans to the maximum extent. It is worth the wait.Slow grinding will not overheat the coffee powder. Multi Roughness Adjustment:Built-in adjustable grind selector, electric coffee grinder can be adjustable to achieve any desired size by simply turning the grind knob. Precisely control the coarseness of drip, cold brew, French press, and espresso. Rechargeable & Powerful:Built in 1250mAh Li-ion Battery, Charged through USB and provides up to 60 minutes run-time after 5 hours fully charged.Electric conical burr grinder with durable DC motor and reducer. One button switch, automatic shut-down. So you no longer consume physical strength, no longer worry about hurting your wrist. Lightweight and Portable: Convenient for travel. The cordless and USB rechargeable grinder grinds easily so you can have perfectly ground coffee beans in a few minutes. Great for camping, hiking, traveling and business trip. Detachable & Easy to Clean:Grind up to about 1 ounce/30 grams of coffee beans each time.No messy and easy to clean. The removable upper burr, hopper and chamber removes easily for effortless cleanup. Grounds bin with ceramic burr and bean hopper can be washed with water and does not rust.