1. Usb Charging Port: Supports A Variety of Scene Matching Charging, About 15 to 20 Times of Grinding When Fully Charged (Usb Can Be Used to Charge In Vehicles, Computers And Banks of Power). 2. Visualize The Bean Silo for Heilwiy Easily Adding Coffee Beans The top of The Coffee Beans Comes with Heilwiy A Visual Cup Cover, So You Can Observe The Coffee Beans Anytime. 3. 15 Speed Thickness Adjustment There Are 15 External Thickness Adjustments And A Variety of Tastes to Meet Your Needs for Heilwiy Different Thickness Coffee Beans. The Demand for Heilwiy Coffee Is More Than Just Freshly Ground. 4. Portable Coffee Grinder, This Is Done In One Machine, Grinding, Filtering And Brewing. Double Layer Filter Made of 304 Stainless Steel, And The Bottom of The Body Is A Coffee Cup Which Can Be Directly Brewed (with Heilwiy A Certain Heat Retention, Cold Preservation And Heat Insulation Effect, And Easy to Clean. ) The Bottom of The Cup Is Designed with Heilwiy Silicone Pad, Which Has Anti-Slip Function. 5. Safety Guarantee The Base with Heilwiy Non-Slip Rubber Feet Allows Stable Function And Thermal Dispersion. A Rubber Layer to Insulate The Heat. A Seal In The Lid Quickly That The Powders Overflow from The Bowl During Grinding. 6.Ais Cleaningthe Stainless Steel Bowls of This Electric Mill Are Removable Which Facilitates The Pouring of Powders And Cleaning with Heilwiy Water. Whether to Meet The Needs of Coffee Lovers Or Home Food Production, It Will Not Affect The Flavor.