【Adjustable Speed】 Set your desired speed by turning the knob, offering stepless speed adjustment from 0 to 35,000 RPM to meet your various needs. Forward and reverse directions can be freely selected (F/R), suitable for both left- and right-handed users. A professional manicure machine perfect for home and nail salon use. 【Convenient Rechargeable Design】 The built-in 4000mAh battery can be used continuously for over 12 hours after a 3.5-hour charge. You can also use it while charging. Its portable design makes it easy to carry, perfect for travel. 【Smart LCD Display】 The LCD display clearly shows real-time speed, rotation direction, and remaining battery charge. It's more convenient and practical to monitor your settings. 【Low Noise, Low Heat, Low Vibration】 The high-quality aluminum alloy housing ensures efficient heat dissipation. The latest anti-vibration design effectively reduces vibration and noise. You can use it anywhere without worrying about disturbing others. 【Professional Nail Care Set】 You'll receive 1 electric nail file with 11 nail drill bits for more efficient grinding. Perfect for manicures, pedicures, polishing, removing excess cuticles, and easily removing acrylic nails and dead skin. Ideal for both beginners and professionals!