LePresso Cordless Electric Conical Burr Grinder is a portable rechargeable coffee mill with a 35g container. Hence its capacity, it grinds enough coffee for 2 double shoots of freshly brewed espresso. With 3 hours of charge, its 800mAh battery can generate enough power to serve you 40 cups of coffee. This Cordless 420 SS High-Grade Steel device uses Burr technology to grind coffee beans which enhances the coffee's taste by ensuring consistency, adaptability to brewing methods, reduced heat generation, and freshness. With its high-precision grinding feature and high-capacity battery, this compact device is definitely a useful gadget at home, in the office and even for camping purposes. Features: Battery: Lithium 7.4v 800mAh 3 Hours Charging Time 40 Cups Single Charge 35g Capacity 420 SS High-Grade Steel