1.[BURR COFFEE GRINDER WITH STAINLESS CORE]The housing and blade of this electric coffee grinder are made of 304 stainless steel, which is strong, sharp and very durable, grinding coffee bean more fully. Most coffee lovers will tell you that stainless conical burrs are much better than blades or ceramic for uniform grind size and flavor. The powder cup adopts ABS environmental protection material. 2.[MULTI GRIND SETTING]- One-touch to turn on/off. The ajustable conical burr coffee grinder is equipped with over 45 manual grind settings to ensure grinding precision and control over grind roughness; Just twist the bottom dial to adjust the grinding thickness of the coffee beans according to your personal habits. For example: 7-15 ticks for Espresso, 17-25 ticks for Mocha, 30-45 ticks for Drip Coffee, 45-50 ticks for French Press. 3.[PORTABLE AND CORDLESS]The built-in battery can run for a week with only 2 hours of charging (depending on the number of personal use). Easy to operate, one-button start, automatic induction of coffee beans to stop. Due to the lightweight design, you can put this cordless and USB rechargeable mini coffee grinder in your bag or suitcase, so you can enjoy the deliciousness of freshly ground coffee anytime you're at home, office work, trip, hiking camping, party, leisure. 4.[CONVENIENCE AND SPEED]The fully automatic coffee grinder saves time, effort and space compared to traditional manual coffee grinders and main powered grinders. During the grinding process of the low-noise motor, you don't worry about making too much noise and disturbing your family during breaks. It only takes 2 minutes to grind 15g coffee beans.