1. Rechargeable and Portable: This nail grinder can be used both while charging and after charging. Its sleek design allows you to take it with you everywhere, you can use it almost anywhere. 2. Convenient and Durable: This professional cordless nail drill is equipped with a high-performance battery. If you use it without being restricted by a cable, a single charge can last for 6 to 8 hours. 3. Adjustable Speed and Rotation Direction: The speed of this electric nail clipper can vary between 0 and 35000 rpm. Press and hold the button for two seconds to start the motor, then press the on/off button to select the rotation direction - left or right. 4. Professional Manicure Bits: The complete manicure set comes with 6 interchangeable bits and a USB. You can see the speed of the manicure bit on the LED display, and it's easy to change bits without tools. 5. Suitable for Home Use and Nail Salons: This professional nail drill, designed for removing acrylic, gel, and natural nails, is an excellent choice for beginners and professional nail technicians. The electric nail file is easy to use, compact, and also a great gift choice. Rotation speed: 35000 rpm Number of grinding heads: 6 Usage time after charging: 6-8 hours Features: Speed visible on LCD screen Features: Grinding, makeup removal, polishing, shaping edges, dead skin care.