Specification:Rated voltage: 110V / 220VRated power: 200WStirring blade: double stiring bladeCapacity: 200-1000MLSpeed: 24000RPMColor: SilverSize:110mmx170mmPackage Included:1 x Coffee Grinder1 x User ManualHow to use:Put the material in, not more than half of the crushing bin (too little is not enough, do not fill it up) The best coverage of the blade, just start grinding and press the switch3-5 seconds, stop, and then press the switch a second time, 3-5 seconds stop, the material is too small, press the switch intermittently to grind(Do not keep pressing the switch for more than 1 minute to prevent the motor from overheating and damage. Half of the time, press the switch for 7-8 seconds to stop and rest for 2-3 seconds, and press the operation repeatedly)If you need to be finer, tilt the machine slightly and press the switch to make powder.