1Superior Material: The accurate grinding machine is made of acrylic material, which is healthy and durable. 2Comfortable Bottle Body: Our grinder adopts curved design, which is comfortable to hold and easy to grind. 3Simple Operation: Just press a button, you can operate with one hand Just touch the button with one hand to enjoy. 4Powerful Function: Our stainless steel grinder is large enough to grind several times at a time, immediately grind and use, and the taste is better. 5Portable and Compact: Easy to carry, easy to open and close, fine grinding, suitable for office and home use. Item Type: Coffee Grinder Material: Acrylic Capacity: 120ML Voltage: 3.7V Power: 13W Battery Type: Built in Lithium Ion Battery Battery Model: 18650 Battery Capacity: 1250mah Product Size: Approx.7.5 x 18.5cm / 2.95 x 7.3in Weight: Approx.489g / 17.2oz 1 x Charging Cable 1 x Brush 1 x User Manual 1 xCoffeeGrinder 1. Wipe the outside of the grinder with a wet towel. Do not put the upper core in water.2. When the product is working continuously, it needs to be started intermittently after 30 minutes after completing a grinding cycle.