[Adjustable Speed for Versatile Use]: 0-15000RPM is suitable for polishing nails, grinding cuticles, shaping, and removing dead skin. 15000-25000 RPM is suitable for removing gel nail polish. 25000-45000RPM is for acrylic nails and other professional manicures in a nail salon. [2024 New Aesthetic Design]: The machine features a streamlined appearance, embodying a trendy and comfortable aesthetic. It includes multiple drill bits in the package for various purposes, catering to different usage needs. [Long-Lasting Rechargeable Battery]: Equipped with a built-in 3600mAh high-capacity battery, it offers up to 6-10 hours of operation on a 3.5-hour full charge. It charges via a Type-C USB port and can simultaneously function as a power bank for emergencies with its USB DC5V output. [Digital LCD Display]: Speed is controlled by a knob, with a digital display showing speeds from 0-45, representing 0-45000RPM. Buttons control power, pause, and forward/reverse rotation. [Ergonomic Design]: The polishing handpiece is ergonomically designed for a comfortable grip and easy bit changes. It's perfect for nail preparation, removing gel polish, acrylic nails, dip powder nails, thick nails, pedicures, wood carving, engraving leather goods, and is suitable for both home and nail salon use.