USB Coffee Bean Grinder Ceramic Electric Portable Rechargeable Grinder Thickness Adjustable for Expresso Latte Coffee Powder|Manual Coffee GrindersUSB Coffee Bean Grinder Ceramic Electric Portable Rechargeable Grinder Thickness Adjustable for Expresso Latte Coffee Powderfeature:1. Ceramic grinding core, fine grinding. Grinding will not become hot, will not affect the roasting degree of coffee beans, and will not change the coffee flavor2. Low speed and slow grinding can keep the aroma soft, reduce the high temperature during the grinding process, and make the coffee aroma volatilize3. The thickness is adjustable, and the thickness of the powder can be adjusted freely. Turn the nut clockwise to grind finer powder. Turn the nut counterclockwise to grind the coarse powder.4. Selected acrylic material, durable and not easy to break. You can follow the grinding process at any time.5. Stainless steel wire drawing process, beautiful and durable, non-slip, one-key start, fast polishing, USB interface, charging indicator light prompt.specification:Material: stainless steel, acrylicSize: 8*8*23.5cmVoltage: 3.7VBattery capacity: 1200AHUSB: 5V / 1AProduct List:1 * Coffee grinder