Saving customers' money and providing good products continue to be 's mission. Electric knife sharpener is made of PVC; stainless steel; and silicon carbide; it can better protect the knife while sharpening. It adopts precision grinding bearings; which makes the operation more stable and smooth; and has a long service life. This knife sharpener is a dual-use rechargeable sharpener that quickly and easily sharpens almost any fine-edged blade. And you can adjust the speed of the sharpener according to the condition of the knife; just press the switch button repeatedly; the grinding wheel speed is stan (low); medi (medium); high (high); 3-speed control. Each blade angle can be reshaped; evenly sharpened; and rejuvenated fast and simply with better precision than a sharpening stone. In addition; the scissor sharpener is safe and easy to use; simply position the dull blade on the sharpening slot and enjoy razor-sharpness in just seconds. Product Parameters: Battery: 18650 2000mAh Battery Life: 2 Hours Power Supply: Charging and Plugging Number Of Files: Three-Speed Power Adjustment EEEkkit Electric Straight Edge and Serrated Knife Sharpener Silicon carbide abrasives; easy to sharpen edges Quickly sharpens almost any fine-edged blade Adopts precision grinding bearings; stable operation 3 Speed control; adjust speed according to the knife Rechargeable; USB power supply for 2 hours usage With a simple on/off switch; sharpen in a short time Made of PVC and stainless steel; durable and anti-rust Size:19 x 8 x 6cm/ 7.48 x 2.36 x 3.15in (L x W x H) Package Includes: 1 x Knife Sharpener; 1 x Instruction Manual