Portable Electric Coffee Grinder with 40 Adjustable Settings Rechargeable USB-C Ceramic Burr Mill 1. Portable electric coffee grinder equipped with a 40-level externally mounted adjustment ring, suitable for various brewing methods including espresso, French press, and pour-over. Features a ceramic burr core and intelligent grinding control. 2. 40-level external fine-tuning dial ring: Rotate clockwise for finer grind counterclockwise for coarser grind, adapting to different brewing needs. 3. High-precision conical ceramic burr core: Ensures uniform grind particles for richer flavor and prevents heat buildup during extended use. 4. Low-noise pure copper motor: Delivers stable, consistent RPM with powerful grinding capability. 5. Intelligent auto-stop technology: RIS (Resistance Intelligent Sensing) system automatically stops operation when beans are depleted or jams occur to protect the motor. 6. Built-in 1800mAh lithium battery: Fully charged for up to 30 cups of grinding. 7. Easy disassembly for cleaning (Never immerse the main unit in water. Ensure all parts are completely dry before reassembly after cleaning). Specifications: 1. Rated power: 25W 2. Input power: 10W 3. Main material: ABS 4. Bean capacity: 25+-5g 5. Grounds capacity: 70+-5g Package Contents: Electric coffee grinder + Charging cable + Cleaning brush + User manual + Color box