【Modern Mainstream Type-C Rechargeable & Ergonomic Design】The BIG masow electric callus remover adopts TYPE-C charging, making charging faster and more convenient. You don't need a dedicated charger; you can charge it with the same cable as your smartphone, allowing for foot care anywhere. After a full charge, it can be used continuously for about 1 to 2 hours, eliminating the need to bring a separate charger for business trips or travel, and allowing you to continue salon-quality care even in hotel bathrooms. 【2-Speed Adjustable High-Rotation Motor & Prominent LCD Screen】Equipped with a high-rotation motor, it offers 2-speed adjustment. The low-speed mode achieves approximately 2300 rotations per minute, and the high-speed mode achieves approximately 3000 rotations per minute. The low-speed mode is ideal for delicate work, while switching to high-speed mode quickly removes stubborn calluses. The LCD screen clearly displays the battery level and speed mode in real-time, allowing you to check the remaining power at a glance and avoid running out of battery unexpectedly. PS: To protect the skin and prevent damage, the grinding roller will automatically stop if pressed too hard for more than 5 seconds. Please restart it in that case. 【Ultra-Durable Materials & 3 Interchangeable Grinding Rollers to Match Skin Type】The grinding roller on the head uses highly wear-resistant diamond abrasive, efficiently removing hard calluses and corns while maintaining grinding power even after long-term use. To match skin tolerance, three interchangeable grinding rollers are provided: fine, medium, and coarse, allowing users to choose the optimal care intensity for their skin type. Furthermore, a grinding roller protective cover and cleaning brush are included to prevent impacts and dust during storage, as well as preventing accidental operation and the scattering of shavings on the floor. 【LED Lighting & IPX6 Waterproof】Equipped with LED lighting, it allows you to clearly see the details of the skin even in environments with insufficient light, such as power outages or cloudy days. The entire body is IPX6 waterproof, so it can be used with wet hands or in the bathroom without any problems. PS: Because it is a splash-proof specification, submersion or prolonged washing may cause internal condensation. When cleaning, remove the grinding head and clean it separately. 【9-Piece Attachment Set Included】A variety of attachments are standard equipment. With 9 dedicated tools included to support foot health in total, such as callus removal, corn removal, and nail care, there is no need to purchase separate tools, making it an excellent value. The uses of each tool are fully described in the product manual.