The bean and powder bins are dishwasher safe. Stainless steel body, stainless steel grinding core. Grinding automatically stops without beans Charge for 3 hours. Work 12 , one time 25G coffee beans medium coarse USB- TYPE C cable charging, universal use. Product Name: Electric Coffee Grinder Model: -988 Function: USB-C lithium battery charging 1250mAh Touch screen control switch, LED power display Rated voltage: DC3.7V~ rated power: 13W Suitable for: Drip Coffee, Espresso, French Press, etc. Multi scene use: Portable coffee shop, travel, business trip, , backpack and suitcase can be placed. Colour:A: silver Material:ABS+stainless steel Size:19 x 7.1CM Package Contents: 1 x Electric Coffee Grinder 1 x Charging Cable 1 x cleaning brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.