about this project This convenient cordless electric coffee grinder features a conical ceramic grinder that resists heat and preserves the original taste and smell of coffee beans. The core is removable for cleaning. 5 levels of grind settings from extra fine to extra coarse. Easily adjust the grind size to your brewing method. Supports up to 25g of coffee beans per grind (enough for 4 cups). Grinding will stop automatically after 3 minutes. Or when there are no coffee beans left. Built-in rechargeable battery and USB charging (adapter not included). Charging time is about 3 hours and can be used up to 30 times. LED indicators show working status and low battery warning. One-key control. Ease of use. A cleaning brush is included to remove leftover coffee grounds. Product dimensions: 18 x 7.5 x 7.5 cm. Weight: 400 grams. Easy to carry. Perfect for camping, travel, and business trips, fits in backpacks, handbags, and suitcases. Why choose our products? Small size, light weight, easy to carry. Perfect for camping, travel, and business trips, fits in backpacks, handbags, and suitcases. No need to plug in when using. As long as it is fully charged, you can use the product to enjoy coffee anytime, anywhere, no matter in the office, at home, or on a business trip. High quality, high specification design, perfect gift for friends and family! 5 levels of grind settings from extra fine to extra coarse. Easily adjust the grind size to your brewing method. Infinitely adjustable thickness, up to 30 mesh coffee grounds (>90%). Bean and powder compartments are dishwasher safe. Charge for 3 hours. Work for 1 week, grind 3 times a day, 25G medium-thick coffee beans each time.