☕ This handy cordless electric coffee grinder is equipped with a conical ceramic grinding core that does not heat up easily, preserving the original taste and aroma of the beans. The core is removable for cleaning. ☕ 5 grind levels from ultra-fine to extra-coarse. Easy to adjust the grind fineness according to your brewing method. ☕ Supports grinding up to 25g of coffee beans at a time (enough for 4 cups). Grinding stops automatically after 3 minutes or when no coffee beans are left. ☕ Built-in rechargeable battery and USB charging (adapter included). Charging time approximately 3 hours for use up to 30 times. LED indicator showing working status and low battery warning. ☕ One-button control. Easy to use. Comes with a cleaning brush to remove residual coffee powder. ☕ Product size: 18 x 7.5 x 7.5 cm. Weight: 400 g. Easy to carry. Suitable for camping, travel, and business trips, and can be placed in backpacks, handbags, and suitcases.