Product Specifications: YK601 Electric Nail Drill Model: YK601 Power: 40W Output: 5V/2A Output Voltage: DC 0-18V Speed: 0-40,000 RPM Grinding Diameter: 2.35mm Color Options: White, Black, Pink, Gray Host Size: 14013085mm Input Voltage: AC 110V/220V, 50HZ/60HZ Material: Aluminum, ABS, Stainless Steel Features: Nail Drill: Designed for acrylic nails with low vibration, low noise, and no heating. Adjustable Speed: 0-40,000 RPM for versatile nail care. Professional Use: Capable of removing cuticles, hard skin, calluses, and perfecting nail shapes. Polishing: Effectively polishes gel nails and acrylic nails. Accessories Included: 6 manicure drill bits 6 manicure drill polishing bands Small size and lightweight design 6 drill bit holders for organizing your bits Professional Service: YOKEFELLOW provides a safe and high-quality manicure experience. 24-hour customer service support. For inquiries, please contact the seller directly. Troubleshooting Tips: If the machine displays "Er" (error), turn it off and check all wires for loose connections or proper insertion. Ensure the pen is unlocked. After checking, you can restart the machine. Note: This product is not a toy and should be used by or under the supervision of an adult.