Experience professional-grade nail care with our powerful and portable nail file. Adjustable High Speed 35000 RPM: Equipped with a high-quality motor, this nail file operates smoothly even at high speeds (adjustable from 0-35000 RPM), making it perfect for all your nail art needs. Extra-Long Battery Life & HD LCD Display: Featuring a built-in 4000mAh lithium battery, this electronic nail file charges fully in just 1.5 hours and provides 10-16 hours of continuous use. The clear LCD screen displays remaining power when turned on and speed during operation, saving you time and money on manicures. Innovative Design: One of the lightest rechargeable nail salons on the market, this acrylic nail file is a must-have for both professional manicurists and personal use. Its polished, lightweight, and beautiful design also makes it an ideal gift for family and friends. Multifunctional File Kit: Comes complete with 1 ceramic nail file bit, 6 metal file bits (compatible with various 3/32" shank file bits), and 6 sanding bands. Perfect for natural acrylic nails, gel nail polish, dip powder nails, and removing dead skin and calluses from cuticles. This versatile nail file can be used for carving, polishing, engraving, cutting, grinding, and other operations. Efficient Heat Dissipation: Designed with low heat, low power consumption, and smooth operation, the nail file machine is made from high-temperature resistant material. The electric nail file handle features a wide ventilation hole design for excellent heat dissipation. The handle can be locked/unlocked for added safety, making it easy to use and highly efficient. Tip: If the machine does not turn on after receiving it, please charge it promptly. After charging, press and hold for 3 seconds to power it on.