Key Features:1. Ideal for chef knives，carving knives，bread knives，steak knives，paring knives，filet knives，cheese knives，scissors，precision tools and more!2. Professional grade，high-speed rotating sapphire stone shapes and hones the blade3. Cordless and battery operated4. Compact design for easy storage，Safe and easy to use5. Battery: AA x 4 (not included)6. Size: 14cm * 8.7cm * 6.5cmPackage List:1 * Electric Knife Sharpener (Battery not include)