product description1. Ergonomic design, easy to hold the handle, the body is equipped with lighting, easy to use, and can be seen clearly at night.2. Two-speed speed regulation, press the switch to display the green light I is the first low-speed gear, select II is the second high-speed gear, and select the speed according to your own needs.USB charging interface, the red light is displayed when charging, and the red light turns green when fully charged.3. Powerful, equipped with two different types of quartz grinding heads, coarse and fine, which can effectively remove dead skin and calluses.4. The configuration of this machine, a foot grinder comes with a coarse sand grinding head (default) in the box, a coarse grinding head, a fine sand grinding head, a USB charging cable, a cleaning brush, and a transparent protective coverVoltage: USB charging DC5V can use car charger, computer USB, charging treasure and other voltages.Power: 6wCharging time: about 3 hoursBattery type: Lithium battery 1200 mAh, the continuous battery life is about 100 minutes, depending on personal usage habits and cleaning methods 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. Sold by-Dadangjia