Features:  Easy to use: Compared with the traditional way of sharpening, with this tool, you just need to pull the cutter from the base to the head, then take out the cutter and repeat the above step to finish the sharpening process.  Three-speed Adjustable: There are three gear speed for you to adjust: High speed, medium speed and slow speed. You can ajust the speed by the button according to your different needs.  Built-in Lithium Battery&USB Recharging: This electric cutter sharpener with 1800mah large capacity battery and you can recharging it by the USB interface in time.  Crude&Fine Double Grinding Modes: This sharpener with the crude and fine double grinding modes, you can choose the suitable mode for your different cutters.  Wide Applications: This sharpener is suitable for a variety of cutters such as slicing cutter, small kitchen cutters, fruit cutter and other flat-blade cutters, but not applicable to ceramic and serrated cutters.    Specifications:  Material: ABS+stainless steel  Battery: 1 * lithium battery, 1800mAh (INCLUDED)  Item weight: 346g / 12.2ounce  Package size: 210 * 80 *70mm / 8.3 * 3.1 * 2.8in  Package weight: 382g / 13.5ounce    Packing list:  1 * Cutter Sharpener