Feature:1. USB charging, 2000mAh lithium battery. Charging: blue light flashes slowly. Full charging: blue light is on.2. Applicable to 6-12mm pen holder, with flexible designed of hole entry, automatic clamping.3. 3-position switch, adjustable thickness, both thick and thin pens can be cut.4. Replaceable alloy knife holder, sturdy and durable, extend the life of the pencil sharpener.5. Open the box and cut off the power, open the waste bucket lid, the machine cannot start, safe to use.6. Large-capacity waste chute for large-capacity storage.7. Sharpen and stop, easy control, no waste.Specification:Item Type: Electric Pencil SharpenerUSB: Black USB cableBattery Type: Lithium batteryBattery Capacity: 2000mAh.Package List: 1 x Electric Pencil Sharpener 1 x USB Cable 1 x Manual