Product information Voltage: USB charging DC5V can be used with car charger, computer USB, power bank and other voltages. Power: 6w Charging time: about 2.5 hours Motor speed: about 13500RPM The speed of the whole machine: fast gear is about 2200RPM, slow gear is about 1700RPM. Main functions: 1. Remove dead skin, calluses and cuticles. 2. Vacuum and collect dander. How to use: Press and hold the switch for 2 seconds, it will enter the slow speed by default, and the green light will turn on. Press the switch briefly Battery type: Lithium battery 1200 mAh, lasting about 100 minutes, depending on personal usage habits and cleaning methods. This machine has a waterproof function. After skin resurfacing, you can rinse the head separately, or you can put the whole machine under the tap and rinse it clean (it is forbidden to soak in water for a long time). Features 1. Vacuum and dust collection function. 2. Freely switch between fast and slow gears. 3. The whole machine can be washed. 4.1200 mAh large-capacity lithium battery, fast charging, long-lasting battery life. Low noise. 5. Charge to change the light, switch to two gears to adjust the light. 6. Overcharge and over-discharge protection system. 7. The appearance is fashionable and streamlined, and the handle is anti-slip and ergonomic. 8. Configuration of this machine, a foot grinder with its own coarse sand grinding head (default), one coarse grinding head, one fine sand grinding head, one USB charging cable, one cleaning brush, transparent protection included in the box Cover one. A color box with instructions. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.