①. 10 Pieces Electric Callus Remover, Rechargeable Foot Care, Foot Grinder【3 Replaceable Grinding Heads】3 grinding heads are made of quartz micromineral crystals with different thicknesses (coarse grinding head for stubborn calluses, medium grinding head for rough, dead skin and fine grinding head for daily skin care). You can choose the right replacement head according to the hardness of your callus. ②. 【One-button two-speed mode】The electronic callus file has a motor. You can easily switch to 2 speeds: 1900 rpm and 2200 rpm. Low speed is suitable for gentle dead skin or sensitive skin care. High speed is suitable for stubborn thick calluses or deep cleaning. Equipment helps your heels and feet stay soft, smooth and healthy. ③. 【Vacuum Suction & Heat Dissipation】: Unlike the traditional drum type, our callus remover has a rotating planetary gear, which can grind a larger area of the callus more effectively. The specially designed vacuum function can suck up small skin calluses and prevent them from flying away. The holes on the grinding head also help dissipate heat, so the device will not burn due to the heat generated during operation. ④. 【USB Charging & LCD Display】With a 1200mAh battery, the USB charging time is 2 to 2.5 hours. It can work continuously for about 100-150 minutes. The liquid crystal display on the body of the electric corn file allows you to accurately see the remaining battery power. Thanks to the cordless design, you can use the electric callus remover anytime, anywhere. ⑤. 【IPX7 Waterproof and Dustproof】Easy to clean: Waterproof, you can enjoy a comfortable massage even in the bathroom. All parts of the foot care device can be washed under running water. The included removal tool and cleaning brush help you easily remove the grinding head and remove accumulated residue, ensuring a hygienic and comfortable experience. ⑥. Technical data: as shown (10 pcs.) Color: as shown Material: ABS Sanding head: 3 different sanding heads (coarse sanding head / medium sanding head / fine sanding head) Power: 6 W Battery capacity: 1200 mAh Charging time: 2-2.5 hours Charging time: 2-2.5 hours Usage time: 100-150 minutes High speed: 2200 rpm Low speed: 1900 rpm CE marking CE marking is a declaration by the manufacturer of the product that the product complies with the requirements of the European Commission directives that apply to it.