☕ This convenient cordless electric coffee grinder is equipped with a conical ceramic grinding core that does not heat up easily and preserves the original taste and aroma of the beans. The core is removable for cleaning. ☕ 5 grind settings from ultra-fine to extra coarse. Easy to adjust the grind setting depending on 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 there are no coffee beans left. ☕ Built-in rechargeable battery and USB charging (adapter not included). Charging time approx. 3 hours for up to 30 uses. LED indicator shows working status and low battery. ☕ One-button operation. Easy to use. Comes with cleaning brush to remove residual coffee powder. ☕ Product size: 18 x 7.5 x 7.5 cm. Weight: 400g. Easy to carry. Suitable for camping, travel and business trips, and can be placed in backpacks, handbags and suitcases.