Feature: 1. Convenient Use: Telescopic charging cable, adjustable length design, with HD digital display screen, which is convenient for you to use. 2. Speed Adjustable: Nail drill machine with 0‑35000RPM can be adjusted, you can slowly increase the polishing speed after getting used to it. 3. CW And CCW Rotation: Electric nail polishing machine with CW and CCW rotation, which let you feel easy to use the left hand and right hand. 4. Portable Size: Small grinding pen allow you can hanging it on your waist or place it on the table, with rotation lock handle, easy to change the grinding head. 5. Multifunction: Electric nail drill machine is ideal for nail grinding, nail shaping, nail polishing, etc., effective to remove nail polish gel, calluses and excess cuticle. Specification: Item Type: Electric Nail Drill Machine Material: ABS Product Power: 30W Power Supply: USB Product Speed: 35000RPM Voltage: 100-240V Battery Type: Lithium battery (Included) Battery Capacity: 1000mAh Size: Approx. 17 x 8 x 2cm / 6.69 x 3.15 x 0.79in Functions: Nail polishing, grinding, removing, peeling, carving radian and so on. Suitable for all kinds of manicure, cosmetic accessories and other work.. Package List: 1 x Host1 x Grinding Pen 6 x Grinding Head 6 x Sand Rings1 x Pen Holder 1 x Plug 1 x Manual Note: 1. Please use the correct power supply voltage.2. Please use it after the container is fixed.3. If any abnormal action/noise is found during operation, please stop the machine immediately.4. Please adjust your speed gradually rather than suddenly.5. Do not touch any rotating parts when the machine is working.6. Please pause and change direction.7. Please do not put cloth or anything else on the ventilation slide of the controller, and do not make the dust away from it.8. After the machine is shut down, please unplug the plug from the power supply.9. Please allow small error due to manual measurement. Thanks for your understanding.