1、Easy to use, lightly press and sharpen the pen, it will stop after sharpening 2、Stop when opening the lid, high safety, the knife holder does not rotate when opening the lid 3、The knife holder can be replaced, strong and durable, has a long service life 4、Adjustable pen tip thickness, thicker on the left, thin on the right 5、Dual power supply mode, you can freely choose to be powered by battery or power cord 6、There is a non‑slip foot pad at the bottom to increase friction and refuse to shake Item Type: Electric Pencil Sharpener Connect The Power Supply: The adapter is suitable for 5V-2A, 5V-1.5A, 6V-1.5A Battery Type: AA battery (delivered without battery) Number of Batteries: 4 Color: Blue Instructions for Use: Grab the pencil sharpener with one hand and the pencil with one hand. Press the pencil gently. When the pencil sharpener rotates, hold the pencil and keep it. The sharpening will stop automatically after about 8 seconds. Press down and take out the pencil. Precautions: 1. Suitable for wooden pencils and colored pencils with diameter: Approx. 6 ~ 8mm / 0.2 ~ 0.3in 2. This product is not suitable for chalk, crayons and charcoal 3. Do not use irritating liquids when cleaning the body 4. When cleaning up the waste, please take out the battery in the machine and disconnect the power 5. Children please use under the guidance of adultsSize: Approx. 67 x 86 x 118mm / 2.6 x 3.4 x 4.6in 1 x Sharpener 1 x User Manual 1 x Power Cord