Feature: High quality, food-grade contact 304 high-quality stainless steel material, suitable for all kinds of kitchen utensils and knives, so that families can rest assured. Efficient sharpening, sharp as new. One-button start two-gear sharpener, two groups of four positions, clear thickness, simple operation. 5 seconds speed grinding, high speed grinding, dull knife renewal. Wireless charging, knife sharpening without location. Hidden heavy electricity at the bottom, convenient storage and no space. Material: stainless steel Battery capacity: 1200mAh Battery life: about 2 hours Charging method: comes with USB charging Rated input voltage: 5V= Battery voltage: 3.7V= Rated input current: 1-2A Rated power: 5W Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin