Parameter Model: YK601 Electric Nail Drill Power: 40W Output: 5V/2A Output Voltage: DC 0-18V Speed: 0-40000RPM Grinding Diameter: 2.35MM Color: White/Black/Pink/Gray Host Size: 140*130*85mm Input Voltage: AC 110V/220V, 50HZ/60HZ Material: Aluminum + ABS + Stainless Steel About this item Nail drill for acrylic nails: low vibration, low noise, no heating Professional electric nail file: 0-40,000 rpm adjustable, high speed, powerful (40W ; : Remove cuticles, hard skin on feet, calluses on natural nails; Polish and polish gel nails and acrylic nails; Perfectly shape your nails Nail Art Drill Set Accessories: Comes with 6 manicure drill bits and 6 manicure drill polishing bands; Small size and light weight, 6 drill bit holders can save your commonly used drill bits PROFESSIONAL SERVICE: YOKEFELLOW manicure machine provides you with a safe and high-quality manicure experience. We provide 24-hour customer service. If you have any questions, please contact the seller first. Note: Remember that when the machine displays Er (error), please turn off the machine first, and check whether all the wires are loose or not tightly inserted. Also need to check if the pen is unlocked. After you have done this, you can open the machine to check and it will work fine.