1. Powerful motor with low noise, uniform and stable motor speed, stable grinding, strong endurance, no need for frequent charging, abundant energy, powerful power, and gentle operation. 2. It can be easily turned on with a single click. It is equipped with an intelligent resistance sensing device and will automatically power off after grinding is completed, eliminating the need to manually press the stop button. The operation is extremely simple. 3. The thickness can be adjusted at will to fit different coffee - making utensils. Adjust the knob according to your needs to meet different coffee - making requirements and fit various coffee utensils. 4. Even in a dark environment, the LED light creates a great atmosphere, allowing for easy operation. 5. The transparent bean hopper provides a clear view. The bean hopper is made of highly transparent material, making it easy to see the powder output during the grinding process. Product Name: Electric Coffee Grinder Battery Capacity: 1200 mAh Battery Voltage: 3.7V Charging Power: 13W Operating Power: 5V/1A Product Capacity: 155 ml Bean Hopper Weight: 25 g Color: Black Material: ABS Dimensions: 190×75 mm Packaging Contents: 1. One coffee grinder 2. One data cable The package only includes the above - mentioned items and no other products. Note: Light reflection and different displays may cause slight color differences between the item and the actual product. A measurement error of plus or minus 1 - 3 cm is allowed.