Wireless portability: easy to store, also suitable for travelingLarge capacity battery: Under normal use, 7.4V/1000mAh can grind about 30 times (15g coffee beans each time) on a full charge5-star 38MM pins: Cut first and then grind ★ Fast cutting, uniform particles*Auto stop: When the beans in the barn run out, it will automatically stop workingEasy to clean: can be cleaned separately from the powder compartment