Yesido EC29 Portable Electric Grinder Coffee Maker 1. High-Precision Ceramic Burr: Conical ceramic burr ensures low-temperature grinding, minimal heat generation, better preservation of coffee flavor, uniform grinding, and long-lasting durability. 2. Low-Noise Powerful Motor: Equipped with a 25W low-noise motor with stable 14500rpm speed for efficient grinding; it takes only about 2.5 mins for coarse grind and about 4 mins for fine grind of 20g coffee beans. 3. Seamless Stylish Design: No exposed screws, compact and exquisite, with an artistic look, small footprint, and easy storage. 4. Large Capacity Battery: Built-in 1200mAh battery with about 1.5h charging time, wireless design fits in backpacks, ideal for business trips and outdoor use. 5. Adjustable Grind Size: Rotate clockwisecounterclockwise to adjust grind fineness, compatible with espresso, mocha, pour-over, French press, cold brew, and other coffee makers. 6. Convenient Operation: Real-time visibility of grinding progress without opening the powder bin, simple operation for clear observation of coffee particles. Product Parameters 1. Material: ABS+AS+UV+Ceramic 2. Motor: 095 Motor 3.7V 3. Rated Power: 25W 4. Speed: 14500rpm 5. Bean Hopper Capacity: 20g 6. Battery: 1200mAh Lithium Battery 7. Charging Time: 1.5h 8. Weight: 357g